Process for making an absorbent article comprising a topsheet/acquisition layer laminate

ABSTRACT

A process of making an absorbent article is disclosed. A liquid permeable topsheet web extending substantially continuously in a machine direction a backsheet web, and an acquisition layer are provided. The topsheet web has first and second surfaces. The backsheet web extends substantially continuously in the machine direction. The acquisition layer has a first and second surface. The topsheet and acquisition layer are aligned in a face to face relationship such that the second surface of the topsheet in in contact with the first surface of the acquisition layer and simultaneously mechanically deformed which combines the topsheet with the acquisition layer. The topsheet web and acquisition layer are nested together such that a majority of the three-dimensional protrusions formed in the topsheet web coincide with and fit together with a majority of the three-dimensional protrusions formed in the acquisition layer to provide a topsheet/acquisition layer laminate web having three-dimensional protrusions.

FIELD OF THE INVENTION

A process of making an absorbent article comprising atopsheet/acquisition layer laminate is provided. Specifically, a processof making an absorbent article comprising a topsheet/acquisition layerlaminate, a dry-laid fibrous structure and an optional carrier layer isprovided.

BACKGROUND OF THE INVENTION

An absorbent article typically comprises a topsheet, a backsheet, and anabsorbent core disposed between the topsheet and the backsheet. Theabsorbent article includes an acquisition layer and optionally adistribution layer. The acquisition layer is able to receive the liquidbodily exudates from the topsheet in order to temporary store them.Then, the distribution layer can receive the liquid bodily exudates fromthe acquisition layer and distribute and transfer them to the absorbentcore in order to make efficient the use of the absorbent core. Suchabsorbent articles exhibit satisfactory fluid handling properties.

Three-dimensional topsheets have been developed; see for example U.S.Patent application US 2014/0121625 A1.

There still remains a need to further improve three-dimensionaltopsheets.

There is a need to develop a method to prepare a skin facing layerhaving a three-dimensional structure for an absorbent article providingimproved fluid handling properties e.g. less rewet on the skin facinglayer, while the physical and perceptional comfort of the wearer arestill met.

There is also a need to produce a skin facing layer having athree-dimensional structure in order to reduce the contact of the liquidbodily exudates with the skin of the wearer. It is desirable as wellthat the skin facing layer shall provide a softness/cushiness feelingfor the caregiver and the wearer.

SUMMARY OF THE INVENTION

The process may comprise the step of cutting into individual absorbentarticles comprising a backsheet, a carrier layer, a topsheet and anacquisition layer, characterized in that the topsheet and theacquisition layer are joined to form a topsheet/acquisition layerlaminate.

A majority of three-dimensional protrusions may be more than 50% or morethan 60% or more than 70% or more than 80% or more than 90% or more than95% or more than 98% of the three-dimensional protrusions in thetopsheet/acquisition layer laminate web or in the topsheet/acquisitionlayer laminate.

The topsheet web and the acquisition layer in the topsheet/acquisitionlayer laminate may be in an intimate contact with each other.

The three-dimensional protrusions may be formed from the fibers of thetopsheet and the acquisition layer. A majority of the three-dimensionalprotrusions may comprise a base forming an opening, an opposed distalportion, and one or more side walls between said bases and said distalportions of said three-dimensional protrusions. The base, distal portionand the one or more side walls may be formed by fibers such that themajority of the three-dimensional protrusions may have only an openingat the base. At least 50% or at least 80% of the three-dimensionalprotrusions of the topsheet/acquisition layer laminate may only haveopenings at the base.

The width of the acquisition layer of the topsheet/acquisition layerlaminate web may not wider more than 40% of the width of a distributionlayer comprising the dry-laid fibrous structure or the wet-laid fibrousstructure and/or more than 20% of the width of the absorbent core.

The absorbent article may comprise gasketing cuffs.

The majority of the three-dimensional protrusions of thetopsheet/acquisition layer laminate web may at least or only be presentin the area where the topsheet web overlaps the acquisition layer in thetopsheet/acquisition layer laminate web.

The majority of the three-dimensional protrusions of thetopsheet/acquisition layer laminate may be present in the area whichextends parallel to the transversal axis of the absorbent article. Themajority of the three-dimensional protrusions of thetopsheet/acquisition layer laminate may be present in the area whichextends parallel to the longitudinal axis of the absorbent article, butwhich does not extend beyond the area where gasketing cuffs is attachedto the absorbent article. In that case, the majority of thethree-dimensional protrusions which are formed in the topsheet of thetopsheet/acquisition layer laminate, are formed from the fibers of thetopsheet.

The process may comprise the step of providing the carrier layer webwhich is colored.

BRIEF DESCRIPTION OF THE DRAWINGS

While the specification concludes with claims particularly pointing outand distinctly claiming the present invention, it is believed that thesame will be better understood from the following description read inconjunction with the accompanying drawings in which:

FIG. 1 is an absorbent article in the form of a diaper comprising anexemplary topsheet/acquisition layer laminate wherein the length of theacquisition layer is less that the length of the topsheet according tothe present invention with some layers partially removed;

FIG. 2 is a transversal cross-section of the diaper of FIG. 1;

FIG. 3 is a transversal cross-section of the diaper of FIG. 1;

FIG. 4 is an absorbent article in the form of a diaper comprising anexemplary topsheet/acquisition layer laminate wherein thethree-dimensional protrusions of the topsheet/acquisition layer laminateare only formed where the topsheet overlaps the acquisition layer in thetopsheet/acquisition layer laminate, according to the present inventionwith some layers partially removed;

FIG. 5 is an absorbent article in the form of a diaper comprising anexemplary topsheet/acquisition layer with another type of absorbent coreaccording to the present invention with some layers partially removed;

FIG. 6 is a transversal cross-section of a diaper of FIG. 5;

FIG. 7 is a transversal cross-section of the absorbent article of FIG. 5taken at the same point as FIG. 6 where channels have formed as a resultthe absorbent article being loaded with liquid bodily exudates;

FIG. 8 is a side schematic view of an example of a process according tothe present invention;

FIG. 9 is a side schematic view of another example of a processaccording to the present invention;

FIG. 10 is a side schematic view of another example of a processaccording to the present invention;

FIG. 11 is an absorbent article in the form of a diaper comprising anexemplary topsheet/acquisition layer laminate with a carrier layeraccording to the present invention with some layers partially removed;

FIG. 12A is a transversal cross-section of the diaper of FIG. 11;

FIG. 12B is another transversal cross-section of the diaper of FIG. 11;

FIG. 13 is an absorbent article in the form of a diaper comprising anexemplary topsheet/acquisition layer laminate with a carrier layeraccording to the present invention with some layers partially removed;

FIG. 14 is a transversal cross-section of the diaper of FIG. 13;

FIG. 15 is an absorbent article in the form of a diaper comprising anexemplary topsheet/acquisition layer laminate with an acquisition layerpositioned in a front region of the absorbent article according to thepresent invention with some layers partially removed;

FIG. 16 is an absorbent article in the form of a diaper comprising anexemplary topsheet/acquisition layer laminate with an acquisition layerpositioned in a rear region of the absorbent article according to thepresent invention with some layers partially removed;

FIG. 17 is a perspective view of an apparatus comprising a first andsecond intermeshing roll for forming the topsheet/acquisition layerlaminate web of the present invention;

FIG. 18A is a cross-sectional depiction of a portion of the apparatusshown in FIG. 17;

FIG. 18B is a perspective view of a portion of the second intermeshingroll of the apparatus shown in FIG. 17;

FIG. 19A is a schematic view of a three-dimensional protrusion of thetopsheet/acquisition layer laminate obtained with the apparatus shown inFIG. 17;

FIG. 19B is a perspective view of a three-dimensional protrusion of thetopsheet/acquisition layer laminate shown in FIG. 19A;

FIG. 19C is another perspective view of a three-dimensional protrusionof the topsheet/acquisition layer laminate shown in FIG. 19A;

FIG. 19D is a schematic view of a three-dimensional protrusion of thetopsheet/acquisition layer laminate obtained with the apparatus shown inFIG. 17;

FIG. 19E is a schematic view of a three-dimensional protrusion of thetopsheet/acquisition layer laminate obtained with the apparatus shown inFIG. 17;

FIG. 19F is a schematic view of a three-dimensional protrusion of thetopsheet/acquisition layer laminate obtained with the apparatus shown inFIG. 17;

FIG. 20A is a schematic view of a three-dimensional protrusion of thetopsheet/acquisition layer laminate obtained with the apparatus shown inFIG. 17;

FIG. 20B is a schematic view of a three-dimensional protrusion of thetopsheet/acquisition layer laminate obtained with the apparatus shown inFIG. 17;

FIG. 20C is a schematic view of a three-dimensional protrusion of thetopsheet/acquisition layer laminate obtained with the apparatus shown inFIG. 17;

FIG. 20D is a schematic view of a three-dimensional protrusion of thetopsheet/acquisition layer laminate obtained with the apparatus shown inFIG. 17.

DETAILED DESCRIPTION OF THE INVENTION Definition of Terms

The term “absorbent article” as used herein refers to disposableproducts such as diapers, pants or feminine hygiene sanitary napkins andthe like which are placed against or in proximity to the body of thewearer to absorb and contain the various liquid bodily exudatesdischarged from the body. Typically these absorbent articles comprise atopsheet, backsheet, an absorbent core and optionally an acquisitionlayer and/or distribution layer and other components, with the absorbentcore normally placed between the backsheet and the acquisition system ortopsheet. The absorbent article of the present invention may be a diaperor pant.

The term “diaper” as used herein refers to an absorbent article that isintended to be worn by a wearer about the lower torso to absorb andcontain liquid bodily exudates discharged from the body. Diapers may beworn by infants (e.g. babies or toddlers) or adults. They may beprovided with fastening elements.

The term “pant” as used herein refers to an absorbent article havingfixed edges, a waist opening and leg openings designed for infant oradult wearers. A pant is placed in position on the wearer by insertingthe wearer's legs into the leg openings and sliding the pant-typeabsorbent article into position about the wearer's lower torso. A pantmay be preformed by any suitable technique including, but not limitedto, joining together portions of the absorbent article usingrefastenable and/or non-refastenable bonds (e.g., seam, weld, adhesive,cohesive bond, fastener, etc.). A pant may be preformed anywhere alongthe circumference of the article (e.g., side fastened, front waistfastened).

The term “extensible” as used herein refers to a material, which, uponapplication of a force, is capable of undergoing an apparent elongationof equal to or greater than at least 100% of its original length in themachine and/or cross-machine directions at or before reaching thebreaking force if subjected to the following test:

The MD and CD tensile properties are measured using a method using WSP110.4 (05) Option B, with a 50 mm sample width, 60 mm gauge length, and60 mm/min rate of extension.

It may be desirable that a material is capable of undergoing an apparentelongation of equal to or greater than at least 100% or 110% or 120% or130% up to 200% in the machine and/or cross-machine directions at orbefore reaching the breaking force according to the Test Method as setout above.

If a material is capable of undergoing an apparent elongation of lessthan 100% of its original length if subjected to the above describedtest, it is “non-extensible” as used herein.

The term “topsheet/acquisition layer laminate web” as used herein refersto an intimate combination of a topsheet web with an acquisition layer,both disposed in a face to face relationship. The topsheet web has afirst and second surface. The first surface of the topsheet web isfacing towards the body of the wearer when the absorbent article is inuse. The acquisition layer is facing the backsheet web. The topsheet weband the acquisition layer have undergone a simultaneous and jointmechanical deformation while the topsheet web and the acquisition layerare combined with each other. The topsheet/acquisition layer laminateweb comprises deformations forming three-dimensional protrusions. Thetopsheet/acquisition layer laminate web is formed by nesting togetherthe topsheet web and acquisition layer such that a majority of thethree-dimensional protrusions formed in the topsheet web coincide withand fit together with a majority of the three-dimensional protrusionsformed in the acquisition layer, as shown in FIGS. 19A and 20A.

In the topsheet/acquisition layer laminate web, the topsheet web andacquisition layer may be in an intimate contact with each other.

There is no interpenetration of one of the topsheet web or acquisitionlayer through the respective other topsheet web or acquisition layer inthe area of the three-dimensional protrusions of thetopsheet/acquisition layer laminate web. The topsheet web andacquisition layer are both extensible such that the topsheet web and/oracquisition layer are able to stretch and do not interpenetrate throughthe respective ruptured topsheet web or acquisition layer.

In the area of the three-dimensional protrusions, the topsheet weband/or acquisition layer may comprise one or more interruptions. Theformation of the one or more interruptions may be due to the propertiesof the topsheet web and acquisition layer, i.e. apparent elongation ofthe fibers, fiber mobility, ability to deform and stretch in the areawhere the three-dimensional protrusions of the topsheet/acquisitionlayer laminate web are formed. In other words, the topsheet web may beless extensible than the acquisition layer or vice versa, however, thenon-ruptured topsheet web or acquisition layer does not interpenetratethe respective ruptured topsheet web or acquisition layer.

Hence, the topsheet/acquisition layer laminate web may be formed byinterrupting one of the topsheet web or acquisition layer in the area ofthe three-dimensional protrusions of the topsheet/acquisition layerlaminate web such that the three-dimensional protrusions of therespective other non-interrupted topsheet web or acquisition layer atleast partially fit together with the three-dimensional protrusions ofthe interrupted topsheet web or acquisition layer, as shown in FIGS.19D, 19E, 20B and 20C.

Alternatively or in addition to what has been set out above, thetopsheet/acquisition layer laminate web may be formed by interruptingthe topsheet web and acquisition layer in the area of thethree-dimensional protrusions of the topsheet/acquisition layer laminateweb and the three-dimensional protrusions of the topsheet web coincidewith and fit together with the three-dimensional protrusions of theacquisition layer. If the topsheet web and acquisition layer compriseinterruptions in the area of the three-dimensional protrusions, theinterruptions in the topsheet web in the area of the three-dimensionalprotrusions of the topsheet/acquisition layer laminate web will notcoincide with the interruptions in the acquisition layer in the area ofthe three-dimensional protrusions of the topsheet/acquisition layerlaminate web, as shown in FIGS. 19F and 20D. There is nointerpenetration of one of the topsheet web or acquisition layer throughthe respective other topsheet web or acquisition layer in the area ofthe three-dimensional protrusions of the topsheet/acquisition layerlaminate web.

The term “interruptions”, as used herein, refers to holes formed in thetopsheet web and/or acquisition layer during the formation of thetopsheet/acquisition layer laminate web, and does not include the poresand interstices between fibers typically present in nonwovens.

The term “mechanically deforming and combining” as used herein meansthat the topsheet web and acquisition layer are put in a face to facerelationship and are simultaneously mechanically deformed between afirst and second roll and intimately combined at the same time. Themechanical deformation of the topsheet web and acquisition layer dependson the process, the required apparatus but also on the properties of thetopsheet web and acquisition layer, i.e. apparent elongation of thefibers, fiber mobility, ability to deform and stretch in the area wherethe three-dimensional protrusions of the topsheet/acquisition layerlaminate web are formed, ability to undergo plastic deformation whichsets after existing the first and second roll, or springing partiallyback due to elastic recovery.

The mechanical deformation may comprise intermeshing the topsheet webtogether with the acquisition layer between a first and secondintermeshing roll. The first intermeshing roll comprises a plurality ofridges and corresponding grooves. The second intermeshing roll comprisesa plurality of rows of circumferentially-spaced teeth and correspondinggrooves such that a plurality of deformations comprisingthree-dimensional protrusions is obtained. A tunnel-shaped loop may beone type of three-dimensional protrusion.

The term “topsheet/acquisition layer laminate” as used herein refers toan intimate combination of a topsheet with an acquisition layer, bothdisposed in a face to face relationship. The topsheet has a first andsecond surface. The first surface of the topsheet is facing towards thebody of the wearer when the absorbent article is in use. The acquisitionlayer is facing the backsheet. The topsheet and the acquisition layerhave undergone a simultaneous and joint mechanical deformation while thetopsheet and the acquisition layer are combined with each other. Thetopsheet/acquisition layer laminate comprises deformations formingthree-dimensional protrusions. The topsheet/acquisition layer laminateis formed by nesting together the topsheet and acquisition layer suchthat a majority of the three-dimensional protrusions formed in thetopsheet coincide with and fit together with a majority of thethree-dimensional protrusions formed in the acquisition layer, as shownin FIGS. 19A and 20A.

For each three-dimensional protrusion:

-   -   The topsheet is nested into the acquisition layer or vice versa        such that the majority of the three-dimensional protrusions of        the topsheet and of the acquisition layer coincide with and fit        together, as shown in FIGS. 19A and 20A. There is no        interpenetration of one of the topsheet or acquisition layer        into or through the respective other topsheet or acquisition        layer in the area of the three-dimensional protrusions of the        topsheet/acquisition layer laminate.    -   In addition to what has been set out above, one of the topsheet        or acquisition layer may be interrupted in the area of the        three-dimensional protrusions of the topsheet/acquisition layer        laminate such that the three-dimensional protrusions made of the        respective other non-interrupted topsheet or acquisition layer        at least partially fit together with the three-dimensional        protrusions of the interrupted topsheet or of the interrupted        acquisition layer, as shown in FIGS. 19D, 19E, 20B and 20C.        There is no interpenetration of one of the topsheet or        acquisition layer through the respective other topsheet or        acquisition layer in the area of the three-dimensional        protrusions of the topsheet/acquisition layer laminate.    -   Alternatively or in addition to what has been set out above, the        topsheet and acquisition layer may be interrupted in the area of        the three-dimensional protrusions of the topsheet/acquisition        layer laminate and the three-dimensional protrusions of the        topsheet coincide with and fit together with the        three-dimensional protrusions of the acquisition layer. The        interruptions in the topsheet in the area of the        three-dimensional protrusions of the topsheet/acquisition layer        laminate may not coincide with the interruptions in the        acquisition layer in the area of the three-dimensional        protrusions of the topsheet/acquisition layer laminate, as shown        in FIGS. 19F and 20D. There is no interpenetration of one of the        topsheet or acquisition layer through the respective other        topsheet or acquisition layer in the area of the        three-dimensional protrusions of the topsheet/acquisition layer        laminate.

The term “tunnel-shaped loop” as used herein means that athree-dimensional protrusion of the topsheet/acquisition layer laminateis defined by a plurality of loops extending from the topsheet to theacquisition layer or from the acquisition layer to the topsheet. Theplurality of loops comprises one or more fibers made of thetopsheet/acquisition layer laminate. The fibers of the plurality ofloops are generally aligned with one another such that the plurality ofloops form a tunnel-shaped loop. A tunnel-shaped loop may be defined asa cylindania, i.e. a cylinder cut in half along its length, comprisingopenings at each extremity of the tunnel-shaped loop and a base opening.

The term “a majority of the three-dimensional protrusions” as usedherein means that more than 50% or more than 60% or more than 70% ormore than 80% or more than 90% or more than 95% or more than 98% of thethree-dimensional protrusions in the topsheet/acquisition layer laminateweb or in the topsheet/acquisition layer laminate of the absorbentarticle, each comprises a base forming an opening, an opposed distalportion and the one or more side wall between the base and the distalportion of the three-dimensional protrusion. The base, distal portionand one or more side wall are formed by fibers such that thethree-dimensional protrusion has only an opening at the base (asexemplary shown in a FIG. 19A).

The term “machine direction” or “MD” as used herein means the path thatmaterial, such as a web, follows through a manufacturing process.

The term “cross-machine direction” or “CD” as used herein means the paththat is perpendicular to the machine direction in the plane of the web.

The term “cellulosic fiber” as used herein refers to natural fiberswhich typically are wood pulp fibers. Applicable wood pulps includechemical pulps, such as Kraft, sulfite, and sulfate pulps, as well asmechanical pulps including, for example, groundwood, thermomechanicalpulp and chemically modified thermomechanical pulp. Pulps derived fromboth deciduous trees (hereinafter, also referred to as “hardwood”) andconiferous trees (hereinafter, also referred to as “softwood”) may beutilized. The hardwood and softwood fibers can be blended, oralternatively, can be deposited in layers to provide a stratified web.

The term “dry-laid fiber” as used herein means fibers which have beenprovided in a fluid medium which is gaseous (air).

The term “wet-laid fiber” as used herein comprises cellulosic fiberswhich have been suspended in an aqueous medium, such as water, beforebeing converted into a web and dried according to a wet-laid papermakingprocess.

The term “web” as used herein means a material capable of being woundinto a roll. Webs may be nonwovens.

The term “nonwoven web” as used herein refers to a manufacturedmaterial, web, sheet or batt of directionally or randomly orientedfibers, bonded by friction, and/or cohesion and/or adhesion, excludingpaper and products which are woven, knitted, tufted, stitch-bonded,incorporating binding yarns or filaments, or felted by wet milling,whether or not additionally needled. The fibers may be of natural orman-made origin. The fibers may be staple or continuous filaments or beformed in situ. The porous, fibrous structure of a nonwoven may beconfigured to be liquid permeable or impermeable, as desired.

The term “absorbent core” as used herein refers to a component, which isplaced or is intended to be placed within an absorbent article and whichcomprises an absorbent material enclosed in a core wrap. The term“absorbent core” does not include an acquisition or distribution layeror any other component of an absorbent article which is not either anintegral part of the core wrap or placed within the core wrap. Theabsorbent core is typically the component of an absorbent article whichcomprises all, or at least the majority of, superabsorbent polymer andhas the highest absorbent capacity of all the components of theabsorbent article. The term “substantially free of absorbent material”or “substantially absorbent material free” as used herein means that thebasis weight of the absorbent material in the substantially absorbentmaterial free areas is at least less than 10%, in particular less than5%, or less than 2%, of the basis weight of the absorbent material inthe rest of the absorbent core.

The term “superabsorbent polymers” (herein abbreviated as “SAP”) as usedherein refer to absorbent materials which are cross-linked polymericmaterials that can absorb at least 10 times their weight of an aqueous0.9% saline solution as measured using the Centrifuge Retention Capacity(CRC) test (EDANA method WSP 241.2-05E). The SAP of the invention may inparticular have a CRC value of more than 20 g/g, or more than 25 g/g, orfrom 20 to 50 g/g, or from 20 to 40 g/g, or 25 to 35 g/g. The SAP usefulin the invention includes a variety of water-insoluble, butwater-swellable polymers capable of absorbing large quantities of liquidbodily exudates.

The term “joined to” as used herein encompasses configurations in whichan element is directly secured to another element by affixing theelement directly to the other element; and configurations in which theelement is indirectly secured to the other element by affixing theelement to intermediate member(s) which in turn are affixed to the otherelement. The term “joined to” encompasses configurations in which anelement is secured to another element at selected locations, as well asconfigurations in which an element is completely secured to anotherelement across the entire surface of one of the elements. The term“joined to” includes any known manner in which elements can be securedincluding, but not limited to mechanical entanglement.

The term “joined adjacent to the transversal edges” as used herein meansthat when a first and/or second transversal edge of a first layer is/arejoined adjacent to a first and/or second transversal edges of a secondlayer, the first and/or second transversal edge of the first layer aredisposed within an area spaced inboard from the first and/or secondtransversal edge of the second layer. The area has a width which is from1 to 30% of the width of the second layer.

“Comprise,” “comprising,” and “comprises” are open ended terms, eachspecifies the presence of the feature that follows, e.g. a component,but does not preclude the presence of other features, e.g. elements,steps, components known in the art or disclosed herein. These termsbased on the verb “comprise” should be read as encompassing the narrowerterms “consisting essential of” which excludes any element, step oringredient not mentioned which materially affect the way the featureperforms its function, and the term “consisting of” which excludes anyelement, step, or ingredient not specified. Any preferred or exemplaryembodiments described below are not limiting the scope of the claims,unless specifically indicated to do so. The words “typically”,“normally”, “advantageously” and the likes also qualify features whichare not intended to limit the scope of the claims unless specificallyindicated to do so.

General Description of the Absorbent Article 20

An exemplary absorbent article 20 in which the absorbent core 28 of theinvention can be used is a taped diaper 20 as represented in FIG. 1;FIG. 4 and FIG. 5 with a different absorbent core construction. FIG. 1;FIG. 4 and FIG. 5 are top plan views of the exemplary diaper 20, in aflat-out state, with portions of the structure being cut-away to moreclearly show the construction of the diaper 20. This diaper 20 is shownfor illustration purpose only as the invention may be used for making awide variety of diapers or other absorbent articles.

The absorbent article 20 comprises a topsheet/acquisition layer laminate245 formed from a liquid permeable topsheet 24 and an acquisition layer52. In other words, the absorbent article 20 comprises a liquidpermeable topsheet 24 and an acquisition layer 52 characterized in thatthe topsheet 24 and the acquisition layer 52 are joined to form atopsheet/acquisition layer laminate 245. The absorbent article 20comprises a liquid impermeable backsheet 25 and an absorbent core 28between the topsheet 24 and the backsheet 25. The absorbent article 20comprises a front edge 10, a back edge 12, and two longitudinal sideedges 13. The front edge 10 is the edge of the absorbent article 20which is intended to be placed towards the front of the user when worn,and the back edge 12 is the opposite edge. The absorbent article 20 maybe notionally divided by a longitudinal axis 80 extending from the frontedge 10 to the back edge 12 of the absorbent article 20 and dividing theabsorbent article 20 in two substantially symmetrical halves relative tothis axis, when viewing the absorbent article 20 from the wearer facingside in a flat out configuration, as exemplarily shown in FIG. 1, FIG. 4and FIG. 5.

The absorbent article 20 may comprise a distribution layer 54 which maycomprise a dry-laid fibrous structure or a wet-laid fibrous structure.The topsheet/acquisition layer laminate 245 is facing towards the bodyof the wearer when the absorbent article 20 is in use.

The wet-laid fibrous structure comprising wet-laid fibers may have a Wetburst Strength from 50 to 500 g according to the Wet Burst Strength TestMethod and combinations thereof.

The distribution layer 54 may comprise a dry-laid fibrous structure. Thedry-laid fibrous structure may comprise dry-laid fibers 540. Thedry-laid fibrous structure may comprise a mixture includingsuperabsorbent polymers and dry-laid fibers. The dry-laid fibers maycomprise intra-fiber cross-linked cellulosic fibers.

The distribution layer 54 may be free of tow fibers.

The distribution layer 54 may for example comprise at least 50% byweight of cross-linked cellulose fibers. The cross-linked cellulosicfibers may be crimped, twisted, or curled, or a combination thereofincluding crimped, twisted, and curled. This type of material has beenused in the past in disposable diapers as part of an acquisition system,for example US 2008/0312622 A1 (Hundorf).

Exemplary chemically cross-linked cellulosic fibers suitable for adistribution layer 54 are disclosed in U.S. Pat. Nos. 5,549,791;5,137,537; WO95/34329 or US2007/118087. Exemplary cross-linking agentsmay include polycarboxylic acids such as citric acid and/or polyacrylicacids such as acrylic acid and maleic acid copolymers.

The distribution layer may typically have an average basis weight offrom 30 to 400 g/m², in particular from 100 to 300 g/m². The density ofthe distribution layer may vary depending on the compression of thearticle, but may be of between 0.03 to 0.15 g/cm³, in particular 0.08 to0.10 g/cm³ measured at 0.30 psi (2.07 kPa).

The distribution layer 54 may have an average basis weight of from 30 to400 gsm, in particular from 100 to 300 gsm or from 50 to 250 gsm.

As explained more in a process detailed below, a topsheet web 240 and anacquisition layer 52 are simultaneously mechanically deformed andcombined together to form a topsheet/acquisition layer laminate web2450. The topsheet/acquisition layer laminate web 2450 forms thetopsheet/acquisition layer laminate 245 in the absorbent article 20. Thetopsheet/acquisition layer laminate 245 comprises mechanicaldeformations forming three-dimensional protrusions 250. The mechanicaldeformations provide a three-dimensional structure to thetopsheet/acquisition layer laminate 245.

The absorbent article 20 may comprise elasticized gasketing cuffs 32present between the topsheet 24 and the backsheet 25 and upstandingbarrier leg cuffs 34. FIGS. 1, 4 and 5 also show other typical diapercomponents such as a fastening system comprising fastening tabs 42attached towards the back edge 12 of the absorbent article 20 andcooperating with a landing zone 44 towards the front edge 10 of theabsorbent article 20. The absorbent article 20 may also comprise othertypical components, which are not represented in the Figures, such as aback elastic waist feature, a front elastic waist feature, transversebarrier cuff(s), a lotion application, etc.

As shown in FIG. 7, the barrier leg cuffs 34 may be delimited by aproximal edge 64 joined to the rest of the article 20, typically thetopsheet 24 and/or the backsheet 25, and a free terminal edge intendedto contact and form a seal with the wearer's skin. The barrier leg cuffs34 may be joined at the proximal edge 64 by a bond 65 which may be madefor example by adhesive bonding, fusion bonding or combination of knownbonding means. Each barrier leg cuff 34 may comprise one, two or moreelastic strings 35 to provide a better seal. The gasketing cuffs 32 maybe placed laterally outwardly relative to the barrier leg cuffs 34. Thegasketing cuffs 32 can provide a better seal around the thighs of thewearer. Usually each gasketing leg cuff 32 will comprise one or moreelastic string or elastic element 33 for example between the topsheet 24and the backsheet 25 in the area of leg openings.

The absorbent article 20 can also be notionally divided by a transversalaxis 90 in a front region and a back region of equal length measured onthe longitudinal axis, when the absorbent article 20 is in a flat state.The absorbent article's transversal axis 90 is perpendicular to thelongitudinal axis 80 and placed at half the length of the absorbentarticle 20. The length of the absorbent article 20 can be measured alongthe longitudinal axis 80 from the front edge 10 to the back edge 12 ofthe absorbent article 20. The topsheet 24, acquisition layer 52,distribution layer 54 and absorbent core 28 each have a width which canbe measured from their respective transversal edges and in parallel tothe transversal axis 90.

The absorbent article 20 is notionally divided in a front region 36, aback region 38 and a crotch region 37 located between the front and theback region of the absorbent article 20. Each of the front, back andcrotch region is ⅓ of the length of the absorbent article 20. Theabsorbent article may also comprise front ears 46 and back ears 40 as itis known in the art.

The absorbent core 28 of the present invention may comprise as absorbentmaterial 60 a blend of cellulosic fibers (so called “airfelt”) andsuperabsorbent polymers in particulate form encapsulated in one or moresubstrates, see for example U.S. Pat. No. 5,151,092 (Buell).Alternatively, the absorbent core 28 may be airfelt free as described indetail below.

Generally, the absorbent core 28 can be defined by the periphery of thelayer formed by the absorbent material 60 within the core wrap 160, asseen from the top side of the absorbent core 28. The absorbent core 28can take various shapes, in particular display a so-called “dog bone” or“hour-glass” shape, which shows a tapering along its width towards themiddle or “crotch” region of the core. In this way, the absorbent core28 may have a relatively narrow width in an area of the absorbent core28 intended to be placed in the crotch region of the absorbent article.This may provide for example better wearing comfort. The absorbent core28 may thus have a width (as measured in the transversal direction) atits narrowest point which is less than about 100 mm, 90 mm, 80 mm, 70mm, 60 mm or even less than about 50 mm. The absorbent core 28 can alsobe generally rectangular, see for example as shown in FIG. 5, but otherdeposition areas can also be used such as a “T” or “Y” or “hour-glass”or “dog-bone” shape (See for example FIG. 4).

Some components of the absorbent article 20 will now be discussed inmore details.

“Airfelt-Free” Absorbent Core 28

The absorbent core 28 of the invention may comprise an absorbentmaterial 60 enclosed within a core wrap 160. The absorbent material 60may comprise from 80% to 100% of SAP, such as SAP particles, by totalweight of the absorbent material 60. The core wrap 160 is not consideredas an absorbent material 60 for the purpose of assessing the percentageof SAP in the absorbent core 28.

By “absorbent material” it is meant a material which has at least someabsorbency and/or liquid retaining properties, such as SAP, cellulosicfibers as well as some hydrophilically treated synthetic fibers.Typically, adhesives used in making absorbent cores have no absorbencyproperties and are not considered as absorbent material. The SAP contentmay be substantially higher than 80%, for example at least 85%, at least90%, at least 95% and even up to and including 100% of the weight of theabsorbent material 60 contained within the core wrap 160. This above SAPcontent substantially higher than 80% SAP may provide a relatively thinabsorbent core 28 compared to conventional absorbent cores typicallycomprising between 40-60% SAP and 40-60% of cellulosic fibers. Theabsorbent material 60 of the invention may in particular comprise lessthan 10% weight percent, or less than 5% weight percent, or even besubstantially free of natural and/or synthetic fibers. The absorbentmaterial 60 may advantageously comprise little or no cellulosic fibers,in particular the absorbent core 28 may comprise less than 15%, 10%, or5% (airfelt) cellulosic fibers by weight of the absorbent core 28, oreven be substantially free of cellulose fibers. Such absorbent core 28may be relatively thin and thinner than conventional airfelt cores. FIG.1, FIG. 2 and FIG. 3 are illustrations of an absorbent article 20comprising an “airfelt-free” absorbent core 28.

“Airfelt-free” absorbent cores 28 comprising relatively high amount ofSAP with various absorbent core designs have been proposed in the past,see for example in U.S. Pat. No. 5,599,335 (Goldman), EP1447066A1(Busam), WO95/11652 (Tanzer), US2008/0312622A1 (Hundorf), andWO2012/052172 (Van Malderen).

The absorbent core 28 of the invention may comprise adhesive for exampleto help immobilizing the SAP within the core wrap 160 and/or to ensureintegrity of the core wrap 160 in particular when the core wrap 160 ismade of one or more substrates. The core wrap 160 will typically extendover a larger area than strictly needed for containing the absorbentmaterial 60 within.

Core Wrap

The absorbent material 60 is encapsulated in one or more substrates. Thecore wrap 160 comprises a top side 16 facing the topsheet 24 and abottom side 16′ facing the backsheet 25. The core wrap 160 may be madeof a single substrate folded around the absorbent material 60. The corewrap 160 may be made of two substrates (one mainly providing the topside 16 and the other mainly providing the bottom side 16′) which areattached to another, as exemplarily shown in FIG. 2. Typicalconfigurations are the so-called C-wrap and/or sandwich wrap. In aC-wrap, as exemplarily shown in FIG. 6, the longitudinal and/ortransversal edges of one of the substrate are folded over the othersubstrate to form flaps. These flaps are then bonded to the externalsurface of the other substrate, typically by bonding with an adhesive.The so called C-wrap construction can provide benefits such as improvedresistance to bursting in a wet loaded state compared to a sandwichseal.

The core wrap 160 may be formed by any materials suitable for receivingand containing the absorbent material 60. The core wrap 160 may inparticular be formed by a nonwoven web, such as a carded nonwoven,spunbond nonwoven (“S”) or meltblown nonwoven (“M”), and laminates ofany of these. For example spunmelt polypropylene nonwovens are suitable,in particular those having a laminate web SMS, or SMMS, or SSMMS,structure, and having a basis weight range of about 5 gsm to 15 gsm.Suitable materials are for example disclosed in U.S. Pat. No. 7,744,576,US2011/0268932A1, US2011/0319848A1 or US2011/0250413A1. Nonwovenmaterials provided from synthetic fibers may be used, such aspolyethylene (PE), polyethylene terephthalate (PET) and in particularpolypropylene (PP).

“Airfelt-Free” Absorbent Core 28 Comprising Substantially AbsorbentMaterial Free Areas 26

The absorbent core 28 may comprise an absorbent material deposition area8 defined by the periphery of the layer formed by the absorbent material60 within the core wrap 160.

The absorbent core 28 may comprise one or more substantially absorbentmaterial free area(s) 26 which is/are substantially free of absorbentmaterial 60 and through which a portion of the top side 16 of the corewrap 160 is attached by one or more core wrap bond(s) 27 to a portion ofthe bottom side 16′ of the core wrap 160, as shown in FIGS. 5 and 6. Inparticular, there can be no absorbent material 60 in these areas.Minimal amount such as contaminations with absorbent material 60 thatmay occur during the making process are not considered as absorbentmaterial 60. The one or more substantially absorbent material freearea(s) 26 may be advantageously confined by the absorbent material 60,which means that the substantially absorbent material free area(s) 26do(es) not extend to any of the edge of the absorbent materialdeposition area 8.

If the substantially absorbent material free area 26 extends to any ofthe edges of the absorbent material deposition area 8, eachsubstantially absorbent material free area 26 may have areas ofabsorbent material 60 on either side of each substantially absorbentmaterial free area 26.

The absorbent core 28 may comprise at least two substantially absorbentmaterial free areas 26 symmetrically disposed on both sides of thelongitudinal axis of the absorbent core 28, as shown in FIG. 5.

The substantially absorbent material free area(s) 26 may be straight andcompletely oriented longitudinally and parallel to the longitudinal axisbut also may be curved or have one or more curved portions.

Furthermore, in order to reduce the risk of liquid bodily exudateleakages, the substantially absorbent material free area(s) 26advantageously do not extend up to any of the edges of the absorbentmaterial deposition area 8, and are therefore surrounded by and fullyencompassed within the absorbent material deposition area 8 of theabsorbent core 28. Typically, the smallest distance between asubstantially absorbent material free area 26 and the closest edge ofthe absorbent material deposition area 8 is at least 5 mm.

“Airfelt free” absorbent cores 28 comprising substantially absorbentmaterial free areas 26 have been proposed, see for example in EP PatentApplication No. 12196341.7.

One or more channel(s) 26′ along the substantially absorbent materialfree area(s) 26 in the absorbent core 28 may start forming when theabsorbent material 60 absorbs a liquid and starts swelling. As theabsorbent core 28 absorbs more liquid, the depressions within theabsorbent core 28 formed by the channel(s) 26′ will become deeper andmore apparent to the eye and the touch. The formation of the channel(s)26′ may also serve to indicate that the absorbent article 20 has beenloaded with liquid bodily exudates. The core wrap bond(s) 27 shouldremain substantially intact at least during a first phase as theabsorbent material 60 absorbs a moderate quantity of liquid bodilyexudates.

As shown in FIG. 7, when the absorbent material swells, the core wrapbonds 27 remain at least initially attached in the substantiallyabsorbent material free areas 26. The absorbent material 60 swells inthe rest of the absorbent core 28 when it absorbs a liquid, so that thecore wrap 160 thus forms channels 26′ along the substantially absorbentmaterial free areas 26 comprising the core wrap bonds 27.

The Process of Making the Absorbent Article Having aTopsheet/Acquisition Layer Laminate Web

A topsheet/acquisition layer laminate 245 having a three-dimensionalstructure is provided.

A process 100 of making an absorbent article 20 comprises the step ofproviding a liquid permeable topsheet web 240 extending substantiallycontinuously in a machine direction, the topsheet web 24 having a firstand second surface, a liquid impermeable backsheet web 2555 extendingsubstantially continuously in the machine direction, and an acquisitionlayer 52 having a first and second surface. The first surface of thetopsheet web 24 will be facing towards the body of the wearer when theabsorbent article 20 is in use. The topsheet web 240, and thus thetopsheet 24, and the acquisition layer 52 comprise fibers.

The topsheet web 240 and acquisition layer 52 are aligned in a face toface relationship such that the second surface of the topsheet web 240is in contact with the first surface of the acquisition layer 52. Thetopsheet web 240 and the acquisition layer 52 are simultaneouslymechanically deformed and combined together. The topsheet web 240 andacquisition layer 52 are nested together such that the majority of thethree-dimensional protrusions formed in the topsheet web 240 coincidewith and fit together with the majority of the three-dimensionalprotrusions formed in the acquisition layer 52 to provide atopsheet/acquisition layer laminate web 2450 having three-dimensionalprotrusions 250. This means that both topsheet web 240 and acquisitionlayer 52 are mechanically deformed and combined together at the sametime. The topsheet/acquisition layer laminate web 2450 has a firstsurface comprising the second surface of the acquisition layer 52.

A portion of the backsheet web 2555 is joined to a portion of thetopsheet web 240 of the topsheet/acquisition layer laminate web 2450such that the first surface of the topsheet/acquisition layer laminateweb 2450 is facing towards the backsheet web 2555.

The process 100 of making an absorbent article 20 may comprise the stepof providing a dry-laid fibrous structure or a wet-laid fibrous, asshown in FIG. 8.

As shown in FIG. 8, the topsheet web 240 and acquisition layer 52 aremechanically deformed and combined between a first and second roll (211,212) to form a topsheet/acquisition layer laminate web 2450. Dry-laidfibers 540 of the dry-laid fibrous structure (as shown in FIG. 8,provided from a distribution material feeder 210) or wet-laid fibrousstructure may be deposited on the first surface of thetopsheet/acquisition layer laminate web 2450 or the backsheet web 2555.

A portion of the backsheet web 2555 may be joined to a portion of thetopsheet web 240 of the topsheet/acquisition layer laminate web 2450such that the dry-laid fibrous structure or the wet-laid fibrousstructure are between the topsheet/acquisition layer laminate web 2450and the backsheet web 2555.

The dry-laid fibrous structure may comprise dry-laid fibers 540. Thedry-laid fibrous structure may comprise a mixture includingsuperabsorbent polymers (SAP) and dry-laid fibers. The dry-laid fibersmay comprise intra-fiber cross-linked cellulosic fibers.

The process may further comprise the step of providing an absorbent core28 which comprises an absorbent material 60. The absorbent material 60may comprise from 80% to 100% of SAP, such as SAP particles, by totalweight of the absorbent material 60.

Another type of absorbent material may be water-absorbing foams based oncross-linked monomers comprising acid groups, see for example from EP 0858 478 B1, WO 97/31971 A1, WO 99/44648 A1 and WO 00/52087 A1.

Hence, the first surface of the topsheet/acquisition layer laminate 245can carry the material of the distribution layer 54 or the absorbentmaterial 60 of the absorbent core 28.

A majority of the three-dimensional protrusions 250 may be more than 50%or more than 60% or more than 70% or more than 80% or more than 90% ormore than 95% or more than 98% of the three-dimensional protrusions 250in the topsheet/acquisition layer laminate web 2450 or in thetopsheet/acquisition layer laminate 245.

The absorbent article 20 may comprise gasketing cuffs 32. The majorityof the three-dimensional protrusions 250 of the topsheet/acquisitionlayer laminate 245 may at least be present in the area where thetopsheet 24 overlaps the acquisition layer 52 in the topsheet/acquisition layer laminate 245. However, the majority of thethree-dimensional protrusions 250 of the topsheet/acquisition layerlaminate 245 may also be present in the acquisition layer 52 and in thetopsheet 24, in the area which extends parallel to the transversal axis90 of the absorbent article 20. The majority of the three-dimensionalprotrusions 250 of the topsheet/acquisition layer laminate 245 may bepresent in the area which extends parallel to the longitudinal axis 80of the absorbent article 20, but which does not extend beyond the areawhere gasketing cuffs 32 is attached to the absorbent article 20, inparticular to the topsheet 24, as shown in FIG. 1. In that case, themajority of the three-dimensional protrusions 250 which are formed inthe topsheet 24 of the topsheet/acquisition layer laminate 245, areformed from the fibers of the topsheet 24.

Alternatively, the majority of the three-dimensional protrusions of thetopsheet/acquisition layer laminate 245 may be present in the area whichextends parallel to the transversal axis 90 of the absorbent article 20such that the area comprising the three-dimensional protrusions of thetopsheet 24 overlaps the acquisition layer 52. The length of the area ofthe majority of the three-dimensional protrusions of thetopsheet/acquisition layer laminate 245 may be from 5% to 60% or from10% to 40% wider than the length of the acquisition layer 52 of thetopsheet/acquisition layer laminate 245. The majority of thethree-dimensional protrusions of the topsheet/acquisition layer laminate245 may be present in the area which extends parallel to thelongitudinal axis 80 of the absorbent article 20 such that the areacomprising the majority of the three-dimensional protrusions of thetopsheet 24 overlaps the acquisition layer 52. The width of the area ofthe majority of the three-dimensional protrusions of thetopsheet/acquisition layer laminate 245 may be from 5% to 60% or from10% to 40% wider than the width of the acquisition layer 52 of thetopsheet/acquisition layer laminate 245. In that case, the majority ofthe three-dimensional protrusions 250 which are formed in the topsheet24 of the top sheet/acquisition layer laminate 245, are formed from thefibers of the topsheet 24.

In still another alternative, the majority of the three-dimensionalprotrusions 250 of the topsheet/acquisition layer laminate 245 may onlybe present where the topsheet 24 overlaps the acquisition layer 52 inthe topsheet/acquisition layer laminate 245, as shown in FIG. 4.

Hence, the majority of the three-dimensional protrusions 250 can providean impression of depth and can support the caregiver's perception thatthe absorbent article 20 is well able to absorb the liquid bodilyexudates.

The majority of the three-dimensional protrusions 250 of thetopsheet/acquisition layer laminate 245 can have a measured protrusionheight from 0.3 mm to 5 mm or from 0.5 mm to 3 mm or from 1.0 mm to 2.0mm according to the Protrusion Height Test Method as described below.

The majority of the three-dimensional protrusions 250 of thetopsheet/acquisition layer laminate 245 can have a measured protrusionbase width of the three-dimensional protrusions 250 from 0.5 mm to 10 mmor from 0.5 mm to 5 mm or from 0.5 mm to 3.0 mm or from 1.0 mm to 2.5 mmor from 1.5 mm to 2.5 mm according to the Protrusion Base Width TestMethod as described below.

The majority of the three-dimensional protrusions 250 having a shapewith a specific height and width can provide an impression of depth andcan support the caregiver's perception that the absorbent article 20 iswell able to absorb the liquid bodily exudates.

These three-dimensional protrusions 250 provide void volume to receivethe liquid bodily exudates. At the same time, the topsheet 24 andacquisition layer 52 in the topsheet/acquisition layer laminate 245 maybe in an intimate contact because the topsheet 24 and acquisition layer52 are nested together. Also, the topsheet/acquisition layer laminate245 is in close contact with the underlaying layer, i.e. thedistribution layer 54. Hence, the liquid bodily exudates are transmittedmore efficiently from the topsheet/acquisition layer laminate 245 to thedistribution layer 54, which improves the dryness of the topsheet 24 ofthe topsheet/acquisition layer laminate 245. Rewet is reduced at theskin of the wearer. The topsheet/acquisition layer laminate 245 may alsoenable more efficient use of an absorbent core 28. Overall, the topsheet24 of the topsheet/acquisition layer laminate 245 can have an improveddryness than a three-dimensional topsheet 24 placed on top of anacquisition layer 52.

The majority of the three-dimensional protrusions 250 may comprise voidareas 253 which do not contact the skin of the wearer. The absorbentarticle 20 may be in less contact with the skin of the wearer incomparison with a flat topsheet. The void areas 253 of thetopsheet/acquisition layer laminate 245 can help the air to permeatebetween the skin of the wearer and the topsheet/acquisition layerlaminate 245. Hence, the void areas 253 of the topsheet/acquisitionlayer laminate 245 can improve the breathability of thetopsheet/acquisition layer laminate 245.

In addition to improve dryness, the void areas 253 of thetopsheet/acquisition layer laminate 245 can also allow feces to beabsorbed and acquired within them. In that case, the present inventionis suitable to absorb feces of relatively low viscosity.

The topsheet 24 and the acquisition layer 52 in the topsheet/acquisitionlayer laminate 245 may be in an intimate contact with each other.

A width of the acquisition layer 52 is less than a width of the topsheet24 in a cross direction. In the absorbent article 20 comprising thelongitudinal axis 80 and the transversal axis 90 perpendicular to thelongitudinal axis 80, the width of the acquisition layer 52 in adirection parallel to the transversal axis 90 is less than the width ofthe topsheet 24 in a direction parallel to the transversal axis 90. Ifthe width of both topsheet 24 and acquisition layer 52 were the same,wicking of the liquid bodily exudates underneath the gasketing cuffs 32might occur. Hence, the liquid bodily exudates might not be properlyabsorbed by the absorbent core 28, which may lead to leakage of theliquid bodily exudates out of the absorbent article 20. If the width ofthe acquisition layer 52 is less that the width of the topsheet 24 in across direction, the acquisition layer 52 which may receive the liquidbodily exudates from the topsheet 24 can directly transmit the liquidbodily exudates to the distribution layer 54 in order to be subsequentlyabsorb by the absorbent core 28. Hence, the liquid bodily exudatestemporary stored in the acquisition layer 52 of the topsheet/acquisitionlayer laminate 245 will not readily be drawn towards and underneath thegasketing cuffs 32 by capillary forces. Leakage can thus be reduced byhaving the width of the acquisition layer 52 less that the width of thetopsheet 24 in the topsheet/acquisition layer laminate 245 in adirection parallel to the transversal axis 90.

In order to help reducing leakage and rewet, the width of theacquisition layer 52 of the top sheet/acquisition layer laminate 245 maynot be more than 40% wider than the width of the distribution layer 54and/or more than 20% wider than the width of the absorbent core 28 in adirection parallel to the transversal axis 90. In that case, the liquidbodily exudates may not accumulate at or adjacent to the transversaledges of the acquisition layer. Wicking of the liquid bodily exudatesunderneath the gasketing cuffs 32 is prevented. Indeed, when theacquisition layer 52 of the tospheet/acquisition layer laminate 245 isno more than 20% wider than the width of the absorbent core 28, theliquid bodily exudates can readily be transported into the absorbentcore 28, which can efficiently drain the fluid from the acquisitionlayer 52 into the absorbent core 28. Wicking of the liquid bodilyexudates form the acquisition layer 52 underneath the gasketing cuffs 32is prevented.

The acquisition layer 52 can receive the liquid bodily exudates thatpass through the topsheet 24 and can distribute them to underlyingabsorbent layers. In such a case, the topsheet 24 in thetopsheet/acquisition layer laminate 245 may be less hydrophilic than theacquisition layer 52. The topsheet 24 of the topsheet/acquisition layerlaminate 245 can be readily dewatered.

In order to enhance dewatering of the topsheet 24 of thetopsheet/acquisition layer laminate 245, the pore size of theacquisition layer 52 may be reduced. For this, the acquisition layer 52may made of fibers with relatively small denier. The acquisition layer52 may also have an increased density.

The process may comprise the step of joining the portion of thebacksheet web 2555 to the portion of the topsheet web 240 at or adjacentto the transversal edges of the first surface of thetopsheet/acquisition layer laminate web 2450 in the cross direction. Thetransversal edges of the first surface of the topsheet/acquisition layerlaminate web 2450 do not comprise any acquisition layer 52. When theportion of the backsheet web 2555 is joined to the portion of thetopsheet web 240 of the topsheet/acquisition layer laminate web 2450,the acquisition layer 52 is then enveloped between the topsheet web 240and the backsheet web 2555.

The process may comprise the step of cutting into individual absorbentarticles comprising a backsheet 25, a topsheet 24 and an acquisitionlayer 52, characterized in that the topsheet 24 and acquisition layer 52are joined to form a topsheet/acquisition layer laminate 245.

The topsheet/acquisition layer laminate web 2450 may be produced at aparticular location in the process setup. Hence, thetopsheet/acquisition layer laminate web 2450 might be not available tocarry the dry-laid fibers 540 of the dry-laid fibrous structure of thedistribution layer 54 at the desired location of the process.

A process of making an absorbent article comprises the step of providinga liquid permeable topsheet web 240 extending substantially continuouslyin a machine direction, the topsheet web 240 having a first and secondsurface, a liquid impermeable backsheet web 2555 extending substantiallycontinuously in the machine direction, an acquisition layer 52 having afirst and second surface, a dry-laid fibrous structure and a carrierlayer web 170 having a first and second surface (171, 172), as shown inFIGS. 9 and 10. The topsheet web 240 and the acquisition layer 52comprise fibers.

The topsheet web 240 and acquisition layer 52 are aligned in a face toface relationship with the acquisition layer 52 such that the secondsurface of the topsheet web 240 is in contact with the first surface ofthe acquisition layer 52. The topsheet web 240 and the acquisition layer52 are simultaneously mechanically deformed and combined together. Thetopsheet 24 and acquisition layer 52 are nested together such that themajority of the three-dimensional protrusions formed in the topsheet 24coincide with and fit together with the majority of thethree-dimensional protrusions formed in the acquisition layer 52 toprovide a topsheet/acquisition layer laminate 245 havingthree-dimensional protrusions 250 The width of the acquisition layer 52is less that the width of the topsheet 24 in a cross direction. Thetopsheet/acquisition layer laminate 245 has a first surface comprisingthe second surface of the acquisition layer 52.

The dry-laid fibers 540 of the dry-laid fibrous structure are depositedon the first surface 171 of the carrier layer web 170 as shown in FIGS.9 and 10. A portion of the backsheet web 2555 is joined to a portion ofthe topsheet web 240 of the topsheet/acquisition layer laminate web 2450such that the second surface 172 of the carrier layer web 170 is facingthe topsheet/acquisition layer laminate web 2450 or the backsheet web2555.

Hence, the carrier layer web 170 can carry out the material of thedistribution layer 54 wherever the topsheet/acquisition layer laminateweb 2450 is produced and provided in the process.

According to the method used for making the three-dimensional structureof the topsheet/acquisition layer laminate web 2450, when the topsheetweb 240 and acquisition layer 52 are mechanically deformed together,holes might unintentionally occur. When the distribution layer 54comprises the dry-laid fibrous structure, the dry-laid fibers 540 of thedry-laid fibrous structure may pass through the unintentional holes atthe resulting topsheet/acquisition layer laminate 245 and contactundesirably the skin of the wearer. It may be desirable to prevent thatdry-laid fibers 540 of the dry-laid fibrous structure can pass throughthe unintentional holes of the resulting topsheet/acquisition layerlaminate 245.

The carrier layer web 170 may be disposed between thetopsheet/acquisition layer laminate web 2450 and the dry-laid fibrousstructure, as shown in FIG. 9. In the absorbent article 20, the carrierlayer 17 may act as a barrier layer to impede the dry-laid fibers 540 ofthe dry-laid fibrous structure from passing through the holes of thetopsheet/acquisition layer laminate 245 unintentionally formed by thethree-dimensional mechanical deformation of the topsheet 24 with theacquisition layer 52, as shown in FIGS. 11 and 12(A-B). Also, thecarrier layer 17 may help the transfer of the liquid bodily exudatesfrom the topsheet/acquisition layer laminate 245 to the dry-laid fibrousstructure.

The first surface 171 of the carrier layer 17 in the absorbent article20 may be attached at or adjacent to its longitudinal edges to theabsorbent core 28. Hence, when the carrier layer 17 is disposed betweenthe topsheet/acquisition layer laminate 245 and the dry-laid fibrousstructure, and first surface 171 of the carrier layer 17 is attached tothe absorbent core 28, the dry-laid fibers 540 of the dry-laid fibrousstructure may be not able to escape between the carrier layer 17 and theabsorbent core 28, as exemplified in FIG. 12B. The attachment of thecarrier layer 17 to the longitudinal edges of the absorbent core 28 mayinclude a uniform continuous layer of adhesive 173, a discontinuouspatterned application of adhesive or an array of separate lines,spirals, or spots of adhesive.

Alternatively, the carrier layer web 170 may be disposed between thedry-laid fibrous structure and the absorbent core 28, as shown in FIG.10. Hence, the carrier layer 17 in the absorbent article 20 may help todistribute and transfer of the liquid bodily exudates from thedistribution layer 54 to the absorbent core 28, as shown in FIGS. 13 and14, which enables more efficient use of the absorbent core 28.

The carrier layer 17 may be attached at or adjacent to its longitudinaledges to the first surface of the topsheet/acquisition layer laminate245. Hence, when the carrier layer 17 is disposed between the dry-laidfibrous structure and the absorbent core 28, and the carrier layer 17 isattached to the first surface of the topsheet/acquisition layer laminate245, the dry-laid fibers 540 of the dry-laid fibrous structure may benot able to escape between the topsheet/acquisition layer laminate 245and the carrier layer 17. The attachment of the carrier layer 17 to thelongitudinal edges to the first surface of the topsheet/acquisitionlayer laminate 245 may include a uniform continuous layer of adhesive, adiscontinuous patterned application of adhesive or an array of separatelines, spirals, or spots of adhesive.

The process may comprise the step of cutting into individual absorbentarticles 20 comprising a backsheet 25, a carrier layer 17, a topsheet 24and an acquisition layer 52 characterized in that the topsheet 24 andacquisition layer 52 are joined to form a top sheet/acquisition layerlaminate 245.

The acquisition layer 52 of the topsheet/acquisition layer laminate web2450 may be provided continuously in the machine direction. A length ofthe acquisition layer 52 of the topsheet/acquisition layer laminate 245in a direction parallel to the longitudinal axis 80 may be equal of alength of the topsheet 24 in a direction parallel to the longitudinalaxis 80.

Alternatively, the acquisition layer 52 of the topsheet/acquisitionlayer laminate web 2450 may be provided intermittently in the machinedirection. The length of the acquisition layer 52 of thetopsheet/acquisition layer laminate 245 in a direction parallel to thelongitudinal axis 80 may be less than the length of the topsheet 24 in adirection parallel to the longitudinal axis 80, as shown in FIG. 1. Whenthe length of the acquisition layer 52 in the topsheet/acquisition layerlaminate 245 is less than the length of the topsheet 24, the liquidbodily exudates cannot be readily drawn towards the longitudinal edges(10, 12) of the absorbent article 20, which reduces leakage.

The acquisition layer 52 of the topsheet/acquisition layer laminate 245may be positioned in the front region 36 and at least partially in thecrotch region 37 of the absorbent article 20, as shown in FIG. 15. Inthat case, positioning the acquisition layer 52 of thetopsheet/acquisition layer laminate 245 in the front region 36 of theabsorbent article 20 helps for acquiring and distributing the liquidbodily exudates such as urine, around the pee point of the wearer.

The acquisition layer 52 of the topsheet/acquisition layer laminate 245may be positioned in the back region 38 and at least partially in thecrotch region 37 of the absorbent article 20, as shown in FIG. 16.Positioning the acquisition layer 52 of the topsheet/acquisition layerlaminate 245 in the back region 38 of the absorbent article 20 helps atacquiring the feces of the wearer, especially when the feces have a lowviscosity.

The majority of the three-dimensional protrusions 250 of thetopsheet/acquisition layer laminate 245 may protrude toward thebacksheet 25 or towards the body of the wearer when the absorbentarticle is in use.

The majority of the three-dimensional protrusions 250 may form, inconjunction, one or more graphics. Having graphics can support thecaregiver's perception that the absorbent article is well able to absorbthe liquid bodily exudates.

Also, the majority of the three-dimensional protrusions 250 may form, inconjunction, one or more graphics such as a logo, e.g. the Pampers Heartlogo.

The topsheet/acquisition layer laminate 245 may be notionally dividedinto a first and second area. The first area may comprisethree-dimensional protrusions 250 which protrude towards the backsheet25. The second area may comprise three-dimensional protrusions 250 whichprotrude towards the body of the wearer when the absorbent article is inuse.

For instance, the first area may be located in the front region 36 andat least partially in the crotch region 37 of the absorbent article 20.

Having the first area where the three-dimensional protrusions 250 of thetopsheet/acquisition layer laminate 245 protrude towards the backsheet25 can help acquiring and absorbing the liquid bodily exudates to theabsorbent core 28. Having the second area where the three-dimensionalprotrusions 250 of the topsheet/acquisition layer laminate 245 protrudetowards the body of the wearer when the absorbent article is in use canimprove cleaning the body from the exudates. Hence, a combination of thefirst and second area can allow the absorbent article 20 to betterperform.

The topsheet 24 of topsheet/acquisition layer laminate 245 may be coatedwith a lotion composition. The lotion composition may be located in theareas of the topsheet 24 which are between the three-dimensionalprotrusions 250 of the topsheet/acquisition layer laminate 245.

Typical lotion compositions used in diapers are disclosed in U.S. Pat.No. 6,426,444 B2. The resulting lotion composition may be applied to thetopsheet/acquisition layer laminate by spraying, printing (e.g.,flexographic printing), coating (e.g., contact slot coating, gravurecoating), extrusion, microencapsulation or combinations of theseapplication techniques.

The majority of the three-dimensional protrusions 250 may be disposed inany suitable arrangement across the plane of the topsheet/acquisitionlayer laminate 245. Suitable arrangements include, but are not limitedto: staggered arrangements, and zones. In some cases, thetopsheet/acquisition layer laminate 245 may comprise boththree-dimensional protrusions 250 and other features known in the artsuch as embossments and apertures. The three-dimensional protrusions 250and other features may be in separate zones, be intermixed, or overlap.Intermixed arrangements can be created in any suitable manner. In somecases, intermixed arrangements can be created by using the techniquesdescribed in U.S. Patent Publication No. US 2012/0064298 A1, Orr, et al.In other cases, overlapping arrangements can be created by forming thethree-dimensional protrusions 250 and then subsequently passing thetopsheet/acquisition layer laminate web 2450 between a forming memberhaving male forming elements thereon and a compliant surface, andapplying pressure to the web with the forming member and compliantsurface. These techniques for producing overlapping arrangements enablethree-dimensional protrusions 250 and other features to be combined sothey are disposed in different locations on the topsheet/acquisitionlayer laminate 245 or they can cause at least some of thethree-dimensional protrusions 250 and at least some of the otherfeatures (apertures, embossments) to be disposed in the same location onthe topsheet/acquisition layer laminate 245.

The Carrier Layer

The carrier layer 17 may be selected from the group consisting ofnonwovens, tissues, or films and combinations thereof.

Examples of a nonwoven web used for the carrier layer 17 may includevarious types of known nonwoven webs such as a spunbonded nonwoven web,a meltblown nonwoven web, and a spunbond-meltblown-spunbond nonwovenweb. These nonwoven webs are made of thermoplastic polymers.

A material for fibers composing the nonwoven web used for the carrierlayer 17 may include various types of known fibers such as polyethylene,polypropylene, polyester, and acryl, conjugate fibers such aspolyethylene/polypropylene, polyethylene/polyethylene terephthalate, andpolypropylene/polyethylene terephthalate, i.e., fibers formed ofcore-in-sheath fibers and side-by-side fibers. The fibers may be usedalone or in combination. Further, the carrier layer 17 may have amonolayer structure or a multilayer structure.

The carrier layer 17 may comprise a tissue made of wet-laid fiberscomprising cellulose fibers having a Wet burst Strength from 50 to 500 gaccording to the Wet Burst Strength Test Method and combinationsthereof.

The carrier layer 17 may be treated with a surfactant to render thecarrier layer 17 hydrophilic. The carrier layer 17 may be made of onematerial of the group as set out above, which has been chemicallymodified to render it hydrophilic. The hydrophilic carrier layer 17 maythus improve the transfer of the liquid bodily exudates from thedistribution layer 54 to the absorbent core 28 of the absorbent article20.

The carrier layer 17 may have a basis weight of at least 5 gsm to 60 gsmor at least 5 gsm to 20 gsm or at least 5 to 15 gsm.

The carrier layer 17 may be colored. The process may comprise the stepof providing a carrier layer which is colored. Color may be imparted tothe carrier layer 17 by color pigmentation. The term “colorpigmentation” encompasses any pigments suitable for imparting anon-white color to the carrier layer 17. This term therefore does notinclude “white” pigments such as TiO₂ which are typically added to thelayers of conventional absorbent articles to impart them with a whiteappearance. Pigments are usually dispersed in vehicles or substrates forapplication, as for instance in inks, paints, plastics or otherpolymeric materials.

The pigments may for example be introduced in a polypropylenemasterbatch. A masterbatch comprises a high concentration of pigmentand/or additives which are dispersed in a carrier medium which can thenbe used to pigment or modify the virgin polymer material into apigmented bicomponent nonwoven. An example of suitable coloredmasterbatch material that can be introduced is Pantone color 270 Sanylenviolet PP 42000634 ex Clariant, which is a PP resin with a highconcentration of violet pigment. Typically, the amount of pigmentsintroduced by weight of the carrier layer 17 may be of from 0.3%-2.5%.

Alternatively, color may be imparted to the carrier layer 17 by way ofimpregnation of a colorant into the substrate. Colorants such as dyes,pigments, or combinations may be impregnated in the formation ofsubstrates such as polymers, resins, or nonwovens. For example, thecolorant may be added to molten batch of polymer during film, fiber, orfilament formation.

When viewing the absorbent article 20 from the topsheet 24, the coloredcarrier layer 17 may provide to a caregiver an enhanced impression ofdepth to support to the impression given by the three-dimensionalprotrusions 250 as such, as long as the colored carrier layer 17 arevisible from the topsheet 24. Hence, a colored carrier layer 17 cansupport the caregiver's perception that the absorbent article 20 is wellable to absorb the liquid bodily exudates.

The topsheet 24 and/or acquisition layer 52 of the topsheet/acquisitionlayer laminate 245 may be colored, for the same reasons.

The carrier layer 17 may be porous, may have a relatively highpermeability and have a relatively high level of saturation when exposedto fluid at suction pressures such as 20 cm water. The relatively highlevel of saturation of the carrier layer 17 can be defined as the ratiobetween the volume of liquid bodily exudates in the pores of the carrierlayer 17 and the total void volume of the carrier layer 17. The carrierlayer 17 can help providing connectivity between the acquisition layer52 of the topsheet/acquisition layer laminate 245 and the distributionlayer 54.

Also, the carrier layer 17 may comprise some relative small sized holessuch that the dry-laid fibers 540 of the dry-laid fibrous structure ofthe distribution layer 54 may partially pass through the holes of thecarrier layer. Hence, the dry-laid fibers 540 of the dry-laid fibrousstructure can entangle and contact the acquisition layer 52 of thetopsheet/acquisition layer laminate 245. The carrier layer 17 maycomprise holes having a size from 0.02 mm to 10 mm.

The Mechanical Deformations and the Resulted Three-DimensionalProtrusions

The step of the process 100 related to mechanically deforming andcombining the topsheet 24 with the acquisition layer 52 may comprise thefollowing step of providing a first and second intermeshing roll (211,212) as shown in FIGS. 17, 18A and 18B.

The first intermeshing roll 211 of an apparatus 200 may comprise aplurality of ridges 215 and corresponding grooves 216 which extendunbroken substantially about a circumference of the first intermeshingroll 211.

The second intermeshing roll 212 may comprise a plurality of rows ofcircumferentially-extending ridges that have been modified to be rows ofcircumferentially-spaced teeth 217 and corresponding grooves 218,wherein the plurality of rows of circumferentially-spaced teeth 217extend in spaced relationship about at least a portion of the secondintermeshing roll 212.

The topsheet web 240 and acquisition layer 52 may be intermeshedtogether between the first and second intermeshing rolls (211, 212) suchthat the ridges 215 of the first intermeshing roll 211 extend into thegrooves 218 of the second intermeshing roll 212 and the teeth 217 of thesecond intermeshing roll 212 extend into the grooves 216 of the firstintermeshing roll 211 to form the topsheet/acquisition layer laminate245. Hence, a plurality of deformations comprising three-dimensionalprotrusions 250 is obtained.

The three-dimensional protrusions 250 of the topsheet/acquisition layerlaminate 245 may be only formed where the topsheet 24 overlaps theacquisition layer 52 in the topsheet/acquisition layer laminate 245.

The first and second intermeshing roll (211, 212) may be further definedby a tooth height TH, a pitch P and a depth of engagement E as shown inFIG. 18A. The tooth height TH may be measured from a surface of thesecond intermeshing roll 212 to a tip of a tooth 217. The tooth heightTH may range from 0.5 mm to 10 mm or from 0.5 mm to 5 mm.

The pitch P may be defined as a tooth-to-tooth spacing which is measuredfrom a tip of a first tooth to a tip of a second tooth of the secondintermeshing roll 212. The first and second tooth of the secondintermeshing roll 212 may be located in the cross-machine direction. Thepitch P may range from 1 mm to 10 mm or from 1 mm to 5 mm.

The depth of engagement E is a measure of how much the first and secondintermeshing rolls (211, 212) are engaging with each other. The depth ofengagement E may be measured from a tip of a ridge 215 to a tip of atooth 217 which is located next to the ridge 215 in the cross-machinedirection. The depth of engagement E may range from 0.5 mm to 10 mm orfrom 0.5 mm to 5 mm or from 1 to 4 mm.

Each tooth 217 of the second intermeshing roll 212 may be defined by acircumferential tooth length TL and a tooth distance TD, as shown inFIGS. 17 and 18B. The circumferential tooth length TL may be measuredfrom a leading edge to a trailing edge at a tooth tip. The tooth lengthTL may range from 0.5 mm to 10 mm or from 0.5 mm to 4 mm or from 1 mm to4 mm.

Each tooth is separated from one another circumferentially by the toothdistance TD. The tooth distance TD may be measured from a leading edgeof a first tooth to a trailing edge of a second tooth. The first andsecond teeth of the second intermeshing roll 212 may be on the samecircumference in the machine direction. The tooth distance TD may rangefrom 0.5 mm to 10 mm or from 0.5 mm to 5 mm or from 1 mm to 3 mm.

Other orientations of the teeth 217, grooves (216, 218) and ridges 215may be possible, e.g. in CD direction versus MD direction.

The topsheet 24 and acquisition layer laminate are nested together suchthat the majority of the three-dimensional protrusions formed in thetopsheet coincide with and fit together with the majority of thethree-dimensional protrusions formed in the acquisition layer.

The topsheet 24 and acquisition layer 52 may be both extensible. Thetopsheet 24 and/or acquisition layer 52 may be able to stretch and donot interpenetrate through the respective ruptured topsheet oracquisition layer.

Generally, the extensibility of the materials composing the topsheet 24and acquisition layer 52 can be selected according to the desired sizesof the three-dimensional protrusions 250. If relatively largethree-dimensional protrusions 250 are desired, materials with arelatively higher extensibility will be chosen.

For instance, the topsheet 24 or acquisition layer 52 may be capable ofundergoing an apparent elongation of equal to or greater than at least100% or 110% or 120% or 130% up to 200% in the machine and/orcross-machine directions before reaching the breaking force according tothe Test Method as set out in the Definition part.

In some cases, it might be desired to have three-dimensional protrusions250 which are larger either in the machine or cross-machine direction.For this, the materials composing the topsheet 24 and acquisition layer52 can be thus more extensible in either machine versus cross-machinedirection or vice versa.

The topsheet/acquisition layer laminate 245 may comprise a plurality ofthree-dimensional protrusions 250. The plurality of three-dimensionalprotrusions 250 may protrude towards the distribution layer 54 (see alsoFIG. 2) or towards the carrier layer 17 (see FIGS. 11, 12). When thethree-dimensional protrusions 250 extend towards the distribution layer54, the area of contact between the acquisition layer 52 of thetopsheet/acquisition layer laminate 245 and the underneath distributionlayer 54 is improved. Hence, the transfer of the liquid bodily exudatesfrom the topsheet/acquisition layer laminate 245 to the distributionlayer 54 can be increased.

FIG. 19A-FIG. 19F shows different alternatives of three-dimensionalprotrusions 250. A loop-shaped protrusion may be one type ofthree-dimensional protrusions 250, see for example FIG. 19B. Aloop-shaped protrusion may be obtained by the intermeshing process stepas just described above using the apparatus 200.

Another type of three-dimensional protrusion 250 may be a tunnel-shapedloop. Generally, a tunnel-shape loop may comprise a base forming anopening and having a protrusion base width and also an opening at aleading edge 261 and an opening at a trailing edge 262, see for exampleFIG. 19C.

As shown in FIGS. 19A and 19B, a three-dimensional protrusion 250 in theform of a loop-shaped protrusion may comprise an inner and outerthree-dimensional protrusion 251A and 251B. The inner three-dimensionalprotrusion 251A of the topsheet 24 is nested in the outerthree-dimensional protrusion 251B of the acquisition layer 52.

The three-dimensional protrusion 250 may be made from intermeshing thetopsheet 24 with the acquisition layer 52 such that the innerthree-dimensional protrusions 251A of the topsheet 24 and the outerthree-dimensional protrusions 251B of the acquisition layer 52 coincidewith and fit together.

The inner three-dimensional protrusion 251A may comprise a plurality oflooped fibers 254A of the topsheet 24. The outer three-dimensionalprotrusion 251B in which the inner three-dimensional protrusion 251A isnested, may comprise a plurality of looped fibers 254B of theacquisition layer 52.

The three-dimensional protrusion 250 may comprise a void area 253 whichis the portion of the three-dimensional protrusion 251A which does notcomprise any fibers. The three-dimensional protrusion 250 may be definedby a base 256 forming an opening proximate to the topsheet 24, a distalportion 257 and one or more side walls 255 between the base 256 and thedistal portion 257. The three-dimensional protrusion 250 may be definedby a protrusion base width WL₁ of the base 256 forming an opening whichis measured from two opposite side walls of the inner three-dimensionalprotrusion 251A at the base 256. Each three-dimensional protrusion 250may be defined by a width WL₂ of the void area 253 which is the maximalwidth measured between two opposite side walls of the innerthree-dimensional protrusion 251A. The width WL₂ of the void area 253may be greater than the protrusion base width WL₁ of the base 256 of thethree-dimensional protrusion 250. Measurements of the dimensions of theprotrusion base width WL₁ of the base 256 and the width WL₂ of thedistal portion 257 can be made on a photomicrograph. When the size ofthe protrusion base width WL₁ of the base 256 is specified herein, itwill be appreciated that if the openings are not of uniform width in aparticular direction, the protrusion base width, WL₁, is measured at thewidest portion.

The majority of the three-dimensional protrusions 250 may have only oneopening at the base 256. At least 50% or at least 80% of thethree-dimensional protrusions 250 of the topsheet/acquisition layerlaminate 245 may only have openings at the base 256. The majority of thethree-dimensional protrusions 250 may be formed from the fibers of thetopsheet 24 and the acquisition layer 52. The majority of thethree-dimensional protrusions 250 may comprise a base 256 forming anopening, an opposed distal portion 257, and one or more side walls 255between the bases 256 and the distal portions 257 of thethree-dimensional protrusions 250. The base 256, distal portion 257 andthe one or more side walls 255 may be formed by fibers such that themajority of the three-dimensional protrusions has only an opening at thebase 256. The majority of the three-dimensional protrusions 250 may havea conical shape, see for example FIG. 19B.

As shown in FIG. 19C, each inner and outer three-dimensional protrusion(251A, 251B) may be made of a plurality of looped fibers (254A, 254B)which are aligned with one another in a machine direction and crossdirection to create a tunnel-shaped loop 250 having openings (261, 262)on each extremity of the tunnel in addition to the opening at the base256. In that case, the protrusion base width WL₁ of the base 256 isrelatively small. The measured protrusion base width WL₁ of the base 256of the three-dimensional protrusion 250 may range from 0.1 mm to 1.2 mmor from 0.1 mm to 1 mm or from 0.1 mm to 0.5 mm according to theProtrusion Base Width Test Method.

In the area of the three-dimensional protrusions, the topsheet 24 and/oracquisition layer 52 may comprise one or more interruptions. Theformation of the one or more interruptions may be due to the propertiesof the topsheet 24 and acquisition layer 52. The topsheet 24 may lessextensible with regard to fiber mobility and/or fiber extensibility thanthe acquisition layer 52 or vice versa such that a hole starts to formin the topsheet 24 and/or acquisition layer 52.

Hence, as shown in FIG. 19D or 19E, the acquisition layer 52 may beinterrupted in in the area of the three-dimensional protrusion 250 ofthe topsheet/acquisition layer laminate 245. The three-dimensionalprotrusion 251B of the interrupted acquisition layer 52 may comprise aninterruption 258B.

Generally, the acquisition layer 52 may have a lower extensibility thanthe topsheet 24. In such cases, the acquisition layer 52 may start torupture and form an interruption, i.e. the fibers composing theacquisition layer 52 may be less extensible and/or mobile than thefibers composing the topsheet 24.

The three-dimensional protrusion 251A of the non-interrupted topsheet 24may coincide with and fit together with the three-dimensional protrusion251B of the interrupted acquisition layer, as shown in FIG. 19D. Inother words, the topsheet 24 is not pushed through the acquisition layer52 such that the topsheet 24 does not interpenetrate through theacquisition layer 52.

Alternatively, the three-dimensional protrusion 251A of thenon-interrupted topsheet 24 may partially fit together with thethree-dimensional protrusion 251B of the interrupted acquisition layer52, as shown in FIG. 19E.

Likewise, the topsheet 24 may be interrupted in the area of thethree-dimensional protrusion 250 of the topsheet/acquisition layerlaminate 245.

Generally, the topsheet 24 may have a lower extensibility than theacquisition layer 52. In such cases, the topsheet 24 may start torupture and form an interruption, i.e. the fibers composing the topsheet24 may be less extensible and/or mobile than the fibers composing theacquisition layer 52.

In another alternative, the topsheet 24 and acquisition layer 52 may beinterrupted in the area of the three-dimensional protrusions 250 of thetopsheet/acquisition layer laminate 245 and the three-dimensionalprotrusions of the topsheet 251A coincide with and fit together with thethree-dimensional protrusions 251B of the acquisition layer 52. Theinterruptions (258A) in the topsheet 24 in the area of thethree-dimensional protrusions 250 of the topsheet/acquisition layerlaminate 245 will not coincide with the interruptions (258B) in theacquisition layer 52 in the area of the three-dimensional protrusions250 of the topsheet/acquisition layer laminate 245, as shown in FIG.19F.

The plurality of three-dimensional protrusions 250 may protrude towardsthe body of the wearer when the absorbent article 20 is in use (see alsoFIG. 3). When the three-dimensional protrusions 250 protrude towards thebody of the wearer when the absorbent article 20 is in use, the area ofcontact between the topsheet 24 of the topsheet/acquisition layerlaminate 245 and the wearer's skin is enhanced. Hence, thetopsheet/acquisition layer laminate 245 provides cushioning to thewearer and an improved sensation of comfort.

FIG. 20A-FIG. 20D shows alternatives how a plurality ofthree-dimensional protrusions 250, e.g. loop-shaped protrusions, mayprotrude from the acquisition layer 52 to the topsheet 24 of thetopsheet/acquisition layer laminate 245. In those alternatives, athree-dimensional protrusion 250 in the form of a loop-shaped protrusionmay comprise an inner and outer three-dimensional protrusion 251A and251B. The inner three-dimensional protrusion 251A of the acquisitionlayer 52 is nested in the outer three-dimensional protrusion 251B of thetopsheet 24. The inner three-dimensional protrusion 251A may comprise aplurality of looped fibers 254B of the acquisition layer 52. The outerthree-dimensional protrusion 251B in which the inner three-dimensionalprotrusion 251A is nested, may comprise a plurality of looped fibers254A of the topsheet 24.

An area of 10 cm² of the topsheet/acquisition layer laminate 245 maycomprise from 5 to 100 three-dimensional protrusions 250 from 10 to 50three-dimensional protrusions 250 or from 20 to 40 three-dimensionalprotrusions 250.

Precursor Materials for the Topsheet and the Acquisition Layer

The topsheet/acquisition layer laminate 245 of the present invention canbe made of any suitable nonwoven materials (“precursor materials”). Insome cases, the topsheet/acquisition layer laminate 245 may also be freeof cellulose materials. The precursor materials for thetopsheet/acquisition layer laminate 245 may have suitable properties inorder to be deformed. The suitable properties of the precursor materialsmay include: apparent elongation of the fibers, fiber mobility, abilityto deform and stretch in the area where the three-dimensionalprotrusions 250 of the topsheet/acquisition layer laminate 245 areformed. Hence, the precursor materials are capable of undergoingmechanical deformation to ensure that the three-dimensional protrusion250 will not tend to recover or return to the prior configuration of aflat topsheet 24 laminated on a flat acquisition layer 52.

Several examples of nonwoven materials suitable for use as a topsheet 24for the topsheet/acquisition layer laminate 245 may include, but are notlimited to: spunbonded nonwovens; carded nonwovens; and nonwovens withrelatively specific properties to be able to be readily deformed.

One suitable nonwoven material as a topsheet 24 for thetopsheet/acquisition layer laminate 245 may be an extensiblepolypropylene/polyethylene spunbonded nonwoven. One suitable nonwovenmaterial as a topsheet 24 for the topsheet/acquisition layer laminate245 may be a spunbonded nonwoven comprising polypropylene andpolyethylene. The fibers may comprise a blend of polypropylene andpolyethylene. Alternatively, the fibers may comprise bicomponent fibers,such as a sheath-core fiber with polyethylene on the sheath andpolypropylene in the core of the fiber.

The topsheet 24 of the topsheet/acquisition layer laminate 245 may havea basis weight from 8 to 40 gsm or from 8 to 30 gsm or from 8 to 20 gsm.

Suitable nonwoven materials for the acquisition layer 52 of thetopsheet/acquisition layer laminate 245 may include, but are not limitedto: spunbonded nonwovens, through-air bonded (“TAB”) carded high loftnonwoven materials, spunlace nonwovens, hydroentangled nonwovens, andresin bonded carded nonwoven materials. Spunbonded PET may be denserthan carded nonwovens, providing more uniformity and opacity. Since PETfibers are not very extensible, the nonwoven can be bonded such that atleast some of the fibers can be separated easily from the bond sites toallow the fibers to pull out of the bond sites and rearrange when thematerial is strained. This type of bonding, e.g. pressure bonding canhelp increasing the level of mobility of the fibers. Indeed, the fiberstend to pull out from the bond sites under tension.

The acquisition layer exhibits a basis weight from 10 to 120 gsm or from10 to 100 gsm or from 10 to 80 gsm.

The topsheet 24 and/or acquisition layer 52 may have a density from 0.01to 0.4 g/cm³ or from 0.01 to 0.25 g/cm³ or from 0.04 to 0.15 g/cm³.

The topsheet 24 and acquisition layer 52 may be joined together prior orduring the mechanical deformation. If desired an adhesive, chemicalbonding, resin or powder bonding, or thermal bonding between thetopsheet 24 and acquisition layer 52 may be selectively utilized to bondcertain regions or all of the topsheet 24 and acquisition layer 52together. In addition, the topsheet 24 and acquisition layer 52 may bebonded during processing, for example, by carding the topsheet 24 ofonto the acquisition layer 52 and thermal point bonding the combinedlayers.

Prior to any mechanical deformation, the topsheet 24 may be attached tothe acquisition layer 52. For instance, the topsheet 24 may be attachedto the acquisition layer 52 where the topsheet 24 and the acquisitionlayer 52 overlaps. The attachment of the topsheet 24 to the acquisitionlayer 52 may include a uniform continuous layer of adhesive, adiscontinuous patterned application of adhesive or an array of separatelines, spirals, or spots of adhesive. The basis weight of the adhesivein the topsheet/acquisition layer laminate 245 may be from 0.5 to 30 gsmor from 1 to 10 gsm or from 2 to 5 gsm.

Example

The topsheet and the acquisition layer were attached to each other witha hot melt adhesive applied in form of spirals with a basis weight of 5gsm. The acquisition layer was centered onto the topsheet with respectto the topsheet and placed 50 mm from the front MD edge of the topsheet.The topsheet and acquisition layer attached together form a compositeweb. The topsheet and acquisition layer attached together have beensimultaneously mechanically deformed by passing them between a pair ofintermeshing rolls (211, 212), see for example FIG. 17. The topsheet ofthe topsheet/acquisition layer laminate was in contact with the firstintermeshing roll 211. The acquisition layer of the topsheet/acquisitionlayer laminate was in contact with the second intermeshing roll 212. Theridges and grooves have a triangular shaped cross-section, asexemplified in FIG. 18A. The pitch P of the rolls is 0.100 inch (2.5mm). The second intermeshing roll 212 has discrete teeth 217 arranged ina staggered pattern. The teeth 217 have a uniform circumferential lengthdimension TL of about 0.195 inch (4.9 mm), are uniformly spaced from oneanother circumferentially by a distance TD of 0.162 inch (4.1 mm), andhave a tooth height TH of about 0.270 inch (10.6 mm). The long sides ofthe teeth have a side wall angle of about 5 degrees from vertical, andthe leading and trailing edges of the teeth have vertical side walls.The first intermeshing roll 211 has continuous ridges 215 with a heightof about 0.270 inch (10.6 mm). The topsheet attached to the acquisitionlayer was intermeshed between the first and second intermeshing roll(211, 212) at 0.135 inch (3.43 mm) depth of engagement (DOE).

The topsheet of the topsheet/acquisition layer laminate was ahydrophilic coated mono component high elongation spunbond polypropylene(HES PP) nonwoven material with a density of 0.11 g/cm³. The monocomponent HES PP nonwoven material for the topsheet has an overall basisweight of 20 gsm. The mono component HES PP nonwoven material was firstcoated with a finish made of a fatty acid polyethylene glycol ester forthe production of a permanent hydrophilic mono component HES PP nonwovenmaterial. The topsheet of the topsheet/acquisition layer laminate had awidth of 168 mm and a length of 488 mm.

The acquisition layer of the topsheet/acquisition layer laminate was aspunbond nonwoven with a basis weight of 60 gsm with a density of 0.13g/cm³. The acquisition layer comprises 7 denier PET/coPET (polyethyleneterephthalate) trilobal bicomponent fibers with a 70/30 ratio ofPET/coPET which has been treated with a surfactant. The acquisitionlayer of the topsheet/acquisition layer laminate had a width of 90 mmand a length of 338 mm.

The carrier layer was a co-PET/PET tipped-trilobal bicomponent fiberswith a 90/10 ratio of PET/coPET. The basis weight of the carrier layerwas 17.7 gsm. The carrier layer had a width of 168 mm and a length of250 mm.

Prototype Diapers for the Example

Diaper prototypes for the above Example were produced using PampersPremium Care S4 (size 4) diaper commercially available in Russia fromOctober 2011 to October 2012. Pampers Premium Care S4 (size 4) diapercomprises a topsheet, an acquisition layer beneath the topsheet, adistribution layer beneath the acquisition layer, an absorbent corebetween the distribution and a backsheet beneath the absorbent core.Diaper prototypes for the above Example were produced using PampersPremium Care S4 (size 4) diaper.

The topsheet and acquisition layer attached together for each examplewere placed on top of a Pampers Premium Care S4 (size 4) from where thecommercial topsheet and acquisition layer were removed while keeping thedistribution layer in place. For each diaper prototype based on theabove Example, the topsheet/acquisition layer laminate were placed ontop of the distribution layer with the three-dimensional protrusionsprotruding towards the backsheet.

A hot melt adhesive in form of spirals with a basis weight of 5 gsm wasapplied on the surface of the carrier layer facing the acquisition layerof the topsheet/acquisition layer laminate. The acquisition layer frontedge is placed 10 mm from the distribution layer front edge. Thetopsheet/acquisition layer laminate attached to the carrier layer wasattached onto the distribution layer and the absorbent core with a hotmelt adhesive applied all over the side of the carrier layer and thetopsheet facing the distribution layer. The hot melt adhesive wasapplied in form of spirals with a basis weight of 5 gsm.

The three-dimensional protrusions of the topsheet/acquisition layerlaminate were protruding towards the backsheet because the topsheet ofthe topsheet/acquisition layer laminate was in contact with the maleroll, as set out above.

Each prototype diaper was compacted in a bag at an In Bag Stack Height,i.e. the total caliper of 10 bi-folded diapers, of 90 mm for 1 week.Then the bag was opened and the diapers out of the bag were conditionedat least 24 hours prior to any testing at 23° C.+/−2° C. and 50%+/−10%Relative Humidity (RH).

The measured protrusion height and the measured protrusion base width ofthe three-dimensional protrusions of the topsheet/acquisition layerlaminate have been measured according to the respective ProtrusionHeight and Protrusion Base Width Test Methods (Table 1).

TABLE 1 Measurements of the protrusion height and protrusion base widthof the three-dimensional protrusions Measured Protrusion MeasuredProtrusion Base Replicate Height (mm) Width (mm) average 1.40 2.0Standard 0.0 0.1 deviation

Test Methods Wet Burst Test Method

The Wet Burst Strength as used herein is a measure of the ability of afibrous structure to absorb energy, when wet and subjected todeformation with regard to the plane of the fibrous structure.

The wet burst strength of a fibrous structure (referred to as “sample”within this test method) is determined using an electronic burst testerand specified test conditions. The results obtained are averaged out of4 experiments and the wet burst strength is reported for a fibrousstructure 55 consisting of one single layer of wet-laid fibers.

Equipment

Apparatus: Burst Tester—Thawing-Albert Vantage Burst Tester orequivalent ball burst instrument where the ball moves downward duringtesting. Refer to manufacturer's operation and set-up instructions. Theball diameter is 1.59 cm and the clamp opening diameter is 8.9 cm.

Calibration Weights—Refer to manufacturer's Calibration instructions

Conditioned Room Temperature and Humidity controlled within thefollowing limits for Laboratory testing:

Temperature: 23°±1° C.

Relative humidity: 50%±2%

Paper Cutter—Cutting board, 600 mm size

Scissors—100 mm, or larger

Pan—Approximate Width/Length/Depth: 240×300×50 mm, or equivalent

Distilled water at the temperature of the conditioned room used

Sample Preparation

The fibrous structure 55 may be unwound from the roll.

The samples to be tested are conditioned in the conditioned room for 24hours immediately before testing. All testing occurs within theconditioned room.

Cut the samples so that they are approximately 228 mm in length andwidth of approximately 140 mm in width.

Operation

Set-up and calibrate the Burst Tester instrument according to themanufacturer's instructions for the instrument being used.Holding the sample by the narrow edges, the center of the sample isdipped into a pan filled approximately 25 mm from the top with distilledwater. The sample is left in the water for 4 (±0.5) seconds.The excess water is drained from the sample for 3 (±0.5) seconds holdingthe sample in a vertical position.The test should proceed immediately after the drain step. The sampleshould have no perforations, tears or imperfections in the area of thesample to be tested. If it does, start the test over.The sample is placed between the upper and lower rings of the BurstTester instrument. The sample is positioned centered and flat on thelower ring of the sample holding device in a manner such that no slackin the sample is present.The upper ring of the pneumatic holding device is lowered to secure thesample.The test is started. The test is over at sample failure (rupture) i.e.,when the load falls 20 g from the peak force. The maximum force value isrecorded.The plunger will automatically reverse and return to its originalstarting position.The upper ring is raised in order to remove and discard the testedsample.The procedure is repeated until all replicates have been tested.

Calculation

Wet Burst Strength=sum of peak load readings/number of replicates tested

Report the Wet Burst results to the nearest gram.

Protrusion Base Width and Protrusion Height Test Methods

1) General Information

The Measured Protrusion Base Width and Measured Protrusion Height of thethree-dimensional protrusions of the topsheet/acquisition layer laminateof an absorbent article are measured using a GFM Primos Optical Profilerinstrument commercially available from GFMesstechnik GmbH, WarthestraBe21, D14513 Teltow/Berlin, Germany. Alternative suitable non-touchingsurface topology profilers having similar principles of measurement andanalysis, can also be used, here GFM Primos is exemplified.

The GFM Primos Optical Profiler instrument includes a compact opticalmeasuring sensor based on a digital micro mirror projection, consistingof the following main components:

-   -   a) DMD projector with 800×600 direct digital controlled        micro-mirrors    -   b) CCD camera with high resolution (640×480 pixels)    -   c) Projection optics adapted to a measuring area of at least        30×40 mm    -   d) Recording optics adapted to a measuring area of at least        30×40 mm    -   e) A table tripod based on a small hard stone plate    -   f) A cold light source (an appropriate unit is the KL 1500 LCD,        Schott North America, Inc., Southbridge, Mass.)    -   g) A measuring, control, and evaluation computer running ODSCAD        6.3 software

Turn on the cold-light source. The settings on the cold-light source areset to provide a color temperature of at least 2800K.

Turn on the computer, monitor, and open the image acquisition/analysissoftware. In the Primos Optical Profiler instrument, select “StartMeasurement” icon from the ODSCAD 6.3 task bar and then click the “LiveImage button”.

The instrument is calibrated according to manufacturer's specificationsusing calibration plates for lateral (X-Y) and vertical (Z). SuchCalibration is performed using a rigid solid plate of any non-shinymaterial having a length of 11 cm, a width of 8 cm and a height of 1 cm.This plate has a groove or machined channel having a rectangularcross-section, a length of 11 cm, a width of 6.000 mm and an exact depthof 2.940 mm. This groove is parallel to the plate length direction.After calibration, the instrument must be able to measure the width anddepth dimensions of the groove to within ±0.004 mm.

All testing is performed in a conditioned room maintained at 23±2° C.and 50+/−10% relative humidity. The surface to be measured may belightly sprayed with a very fine white powder spray. Preferably, thespray is NORD-TEST Developer U 89, available from Helling GmbH,Heidgraben, Germany.

2) Protrusion Base Width Test Method

The topsheet/acquisition layer laminate is extracted from the absorbentarticle by attaching the absorbent article to a flat surface in a tautplanar (i.e. stretched planar) configuration with the topsheet of thetopsheet/acquisition layer laminate facing up. Any leg or cuff elasticsare severed in order to allow the absorbent article to lie flat. Usingscissors, two longitudinal cuts are made through all layers above theabsorbent core (i.e. the core wrap) along the edges of thetopsheet/acquisition layer laminate. Two transversal cuts are madethrough the same layers following the front and back waist edges of theabsorbent article.

The topsheet/acquisition layer laminate and any other layers above theabsorbent core are then removed without perturbing thetopsheet/acquisition layer laminate. Freeze spray (e.g. CRC Freeze Spraymanufactured by CRC Industries, Inc. 885 Louis Drive, Warminster, Pa.18974, USA), or equivalent aid may be used to facilitate removal of theuppermost layers from the absorbent article. The topsheet/acquisitionlayer laminate is then separated from any other layers, including anycarrier layer (e.g. a nonwoven carrier layer, a tissue layer), usingfreeze spray if necessary. If a distribution layer, e.g. a pulpcontaining layer is attached to the topsheet/acquisition layer laminate,any residual cellulose fibers are carefully removed with tweezerswithout modifying the acquisition layer.

The topsheet/acquisition layer laminate with three-dimensionalprotrusions (conditioned at a temperature of 23° C.±2° C. and a relativehumidity of 50%±10% for at least 24 hours) namely “the specimen” is laiddown on a hard flat horizontal surface with the body-facing side upward,i.e. the topsheet of the topsheet/acquisition layer laminate beingupward. Ensure that the specimen is lying in planar configuration,without being stretched, with the specimen uncovered.

A nominal external pressure of 1.86 kPa (0.27 psi) is then applied tothe specimen. Such nominal external pressure is applied withoutinterfering with the topology profile measurement. Such an externalpressure is applied using a transparent, non-shining flat Plexiglas®plate 200 mm by 70 mm and appropriate thickness (approximately 5 mm) toachieve a weight of 83 g. The plate is gently placed on top of thespecimen, such that the center point of the Plexiglas® plate is at least40 mm away from any folds, with the entire plate resting on thespecimen. A fold corresponds to a part of the absorbent article (e.g.the topsheet/acquisition layer laminate) where the absorbent article hasbeen folded for packaging purposes.

Two 50 mm×70 mm metal weights each having a mass of 1200 g (approximatethickness of 43 mm) are gently placed on the Plexiglas® plate such thata 70 mm edge of each metal weight is aligned with the 70 mm edges of thePlexiglas® plate. A metal frame having external dimensions of 70 mm×80mm and interior dimensions of 42 mm×61 mm, and a total weight of 142 g(approximate thickness 6 mm), is positioned in the center of thePlexiglas® plate between the two end weights with the longest sides ofthe frame aligned with the longest sides of the plate.

If the specimen is smaller than 70×200 mm, or if a large enough areawithout a fold is not present, or if an area of interest is close to theedges of the specimen and can't be analyzed with the Plexiglas andweights settings described above, then the X-Y dimensions of thePlexiglas® plate and the added metal weights may be adjusted to reach anominal external pressure of 1.86 kPa (0.27 psi) while maintaining aminimum 30×40 mm field of view. At least 10 complete three-dimensionalprotrusions of the specimen should be captured in the field of view of30 mm×40 mm.

Position the projection head to be normal to the specimen surface (i.e.to the topsheet of the topsheet/acquisition layer laminate).Adjust the distance between the specimen and the projection head forbest focus.In the Primos Optical Profiler instrument, turn on the button “Pattern”to make a red cross appear on the screen ross and a black cross appearson the specimen.Adjust the focus control until the black cross is aligned with the redcross on the screen.Adjust image brightness then capture a digitized image.In the Primos Optical Profiler instrument, change the aperture on thelens through the hole in the side of the projector head and/or alteringthe camera “gain” setting on the screen.When the illumination is optimum, the red circle at the bottom of thescreen labeled “I.O.” will turn green.Click on the “Measure” button.

The topology of the upper surface of the topsheet/acquisition layerlaminate specimen is measured through the Plexiglas plate over theentire field of view 30 mm×40 mm. It is important to keep the specimenstill stationary during this time in order to avoid blurring of thecaptured image. The image should be captured within the 30 secondsfollowing the placement of the Plexiglas plate, metal weights and frameon top of the specimen.

After the image has been captured, the X-Y-Z coordinates of every pixelof the 40 mm×30 mm field of view area are recorded. The X direction isthe direction parallel to the longest edge of the rectangular field ofview, the Y direction is the direction parallel to the shortest edge ofthe rectangular field of view. The Z direction is the directionperpendicular to the X-Y plane. The X-Y plane is horizontal while the Zdirection is vertical, i.e. orthogonal to the X-Y plane.

These data are smoothed and filtered using a polynomial filter (n=6), amedian filter 11 pixels by 11 pixels, and a structure filter 81 pixelsby 81 pixels. The polynomial filter (n=6) approximates the X-Y-Zcoordinate surface with a polynomial of order 6 and returns thedifference to the approximated polynomial. The median filter 11 pixelsby 11 pixels divides the field of view (40 mm×30 mm) in X-Y squares of11 pixels by 11 pixels. The Z coordinate of the pixel located at thecenter of a given 11 pixels by 11 pixels square will be replaced by themean Z value of all the pixels of this given square. The structurefilter 81 pixels by 81 pixels, removes the waviness of the structure andtranslates all the Z peak values belonging to the bottom surface of thePlexiglas plate to a top X-Y plane.

A Reference Plane is then defined as the X-Y plane intercepting thesurface topology profile of the entire field of view (i.e. 30 mm×40 mm),100 microns below this top X-Y plane. In the Primos Optical Profilerinstrument, to measure the Material Area of the Reference Plane (Z=−0.1mm), click on the button “Evaluate”. Then, apply a pre-filtering routineincluding a polynomial filter (n=6), a median filter 11 by 11 and astructure filter (n=81) using the function “Filter”. Save the image to acomputer file with “.omc” extension.

The same above procedure is then executed on the topsheet/acquisitionlayer laminate with the garment-facing side upward (i.e. the acquisitionlayer of the topsheet/acquisition layer laminate being upward), the 40mm×30 mm field of view being located at the exact same X-Y position ofthe topsheet/acquisition layer laminate.

The Empty Area of the reference plane can be defined as the area of theReference Plane that is above the surface profile. The Empty Areashaving boundaries strictly located inside the field of view area (i.e.30 mm×40 mm) without crossing or overlapping with the boundaries of thefield of view area (i.e. 40 mm×30 mm) are defined as Isolated EmptyArea(s). The Measured Protrusion Base Width is defined for an IsolatedEmpty Area as the diameter of the biggest circle that can be inscribedinside a given Isolated Empty Area. This circle should only overlap withthe Isolated Empty Area.

In the Primos Optical Profiler instrument, this can be done by clickingon “Draw circle” and drawing the biggest inscribed circle possible in achosen Isolated Empty Area. Click on “Show sectional picture”, thecircle diameter can be measure via clicking on the extremity of thesectional picture profile and then clicking on “Horizontal distance” toobtain the Protrusion Base Width.

For both of the acquired and digitized images, the Protrusion Base Widthof all the Isolated Empty Areas is determined. Then, the MeasuredProtrusion Base Width is calculated as the arithmetic average of the 6biggest Protrusion Base Widths.

3) Protrusion Height Test Method

The topsheet/acquisition layer laminate is extracted from the absorbentarticle as described above in the Protrusion Base Width Test Method.

The topsheet/acquisition layer laminate specimen comprisingthree-dimensional protrusions is then conditioned and scanned under apressure of 1.86 kPa (0.27 psi) with the body-facing side upward, i.e.the topsheet of the topsheet/acquisition layer laminate being upward asdescribed above in the Protrusion Base Width Test Method.

After the image has been captured, the X-Y-Z coordinates of every pixelof the 40 mm×30 mm field of view area are recorded and smoothed/filteredas described above in the Protrusion Base Width Test Method. A referenceplane is also defined as described above in the Protrusion Base WidthTest Method.

In the Primos Optical Profiler instrument, to measure the Material Areaof the Reference Plane (Z=−0.1 mm), click on the button “Evaluate”. Thenapply a pre-filtering routine including a polynomial filter (n=6), amedian filter 11 by 11 and a structure filter (n=81) using the function“Filter”. Save the image to a computer file with “.omc” extension.

The same above procedure set out in the Protrusion Base Width TestMethod is then executed on the topsheet/acquisition layer laminate withthe garment-facing side upward (i.e. the acquisition layer of thetopsheet/acquisition layer laminate being upward), the 40 mm×30 mm fieldof view being located at the exact same X-Y position of thetopsheet/acquisition layer laminate.

The Empty Area of the reference plane can be defined as the area of theReference Plane that is above the surface profile. The Empty Area havingboundaries strictly located inside the field of view area (i.e. 30 mm×40mm) without crossing or overlapping with the boundaries of the field ofview area (i.e. 40 mm×30 mm) are defined as Isolated Empty Area(s). TheProtrusion Height is defined for an Isolated Empty Area as the distancebetween the minimum Z value of the points of the topsheet/acquisitionlayer laminate surface profile having X-Y coordinates located in thisIsolated Empty Area, and the Z value of the top X-Y plane.

Click on “Draw N parallel lines” and draw a first segment parallel tothe X axis of the field of view (direction of the longest dimension ofthe field of view) passing through the center of the Isolated Empty Areaand extending outside the Isolated Empty Area boundaries. The center ofthe Isolated Empty Area corresponds to the middle of the segmentparallel to the Y axis of the field of view and joining the biggest andsmallest Y value of the Isolated Empty Area. Then input the “number” oflines to be drawn and set the “distance” between lines to 0.05 mm.Enough lines need to be drawn such to cover the entire Isolated EmptyArea. Leave the averaging parameter to 0 then click “Ok”. Then click on“Show sectional picture”. Click on the point of the sectional pictureprofile having the minimum Z value and click on “Vertical distance” toobtain the Protrusion Height.

For both of the acquired and digitized images, the Protrusion Height ofall the Isolated Empty Areas is determined. Then, the MeasuredProtrusion Height is calculated as the arithmetic average of the 6biggest Protrusion Heights.

The dimensions and values disclosed herein are not to be understood asbeing strictly limited to the exact numerical values recited. Instead,unless otherwise specified, each such dimension is intended to mean boththe recited value and a functionally equivalent range surrounding thatvalue. For example, a dimension disclosed as “40 mm” is intended to mean“about 40 mm.”

Every document cited herein, including any cross referenced or relatedpatent or application and any patent application or patent to which thisapplication claims priority or benefit thereof, is hereby incorporatedherein by reference in its entirety unless expressly excluded orotherwise limited. The citation of any document is not an admission thatit is prior art with respect to any invention disclosed or claimedherein or that it alone, or in any combination with any other referenceor references, teaches, suggests or discloses any such invention.Further, to the extent that any meaning or definition of a term in thisdocument conflicts with any meaning or definition of the same term in adocument incorporated by reference, the meaning or definition assignedto that term in this document shall govern.

While particular embodiments of the present invention have beenillustrated and described, it would be obvious to those skilled in theart that various other changes and modifications can be made withoutdeparting from the spirit and scope of the invention. It is thereforeintended to cover in the appended claims all such changes andmodifications that are within the scope of this invention.

What is claimed is:
 1. A process of making an absorbent articlecomprising the steps of: providing a liquid permeable topsheet webextending substantially continuously in a machine direction, thetopsheet web having a first topsheet web surface lying substantiallyalong a first topsheet web plane and second topsheet web surface, aliquid impermeable backsheet web extending substantially continuously inthe machine direction, and an acquisition layer having left and rightlongitudinal edges a first acquisition layer surface and secondacquisition layer surface lying substantially along a second acquisitionlayer plane; aligning the topsheet web and the acquisition layer in aface to face relationship such that the second topsheet web surface isin contact with the first acquisition layer surface; simultaneouslymechanically deforming and combining the topsheet web together with theacquisition layer to form three-dimensional protrusions wherein thetopsheet web and acquisition layer are nested together such that amajority of the three-dimensional protrusions formed in the topsheet webcoincide with and fit together with a majority of the three-dimensionalprotrusions formed in the acquisition layer to provide atopsheet/acquisition layer laminate web having three-dimensionalprotrusions, wherein the topsheet/acquisition layer laminate havingthree dimensional protrusions is formed by interrupting the topsheet webor acquisition layer in the area of the three dimensional protrusions ofthe topsheet/acquisition layer laminate web such that three dimensionalprotrusions of the respective other non-interrupted topsheet web oracquisition layer at least partially fit together with the threedimensional protrusions of the interrupted topsheet web or acquisitionlayer; wherein a width of the acquisition layer is less than a width ofthe topsheet web in a cross direction; the topsheet/acquisition layerlaminate web having a first surface comprising the second surface of theacquisition layer; and joining a portion of the backsheet web to aportion of the topsheet web of the topsheet/acquisition layer laminateweb such that the first surface of the topsheet/acquisition layerlaminate web is facing towards the backsheet web.
 2. The process ofclaim 1, further comprising the step of forming respective left andright longitudinal barrier cuff structures to the topsheet web, thebarrier cuff structures having respective left and right proximal edgesjoined to the topsheet web and free distal edges, the proximal edgesbeing disposed laterally outside the left and right longitudinal edgesof the nonwoven layer.
 3. The process of claim 1, wherein the topsheetweb is a spunbond nonwoven web.
 4. The process of claim 1, wherein theacquisition layer is a spunlace nonwoven web.
 5. The process of claim 3,wherein the acquisition layer is a spunlace nonwoven web.
 6. The processof claim 1, wherein the acquisition layer is a carded nonwoven web. 7.The process of claim 6, wherein the acquisition layer is hydroentangled.8. A process of making an absorbent article comprising the steps of: (a)providing a liquid permeable topsheet web extending substantiallycontinuously in a machine direction, the topsheet web having a first andsecond surface, a liquid impermeable backsheet web extendingsubstantially continuously in the machine direction and an acquisitionlayer having a first and second surface; wherein the topsheet web andthe acquisition layer comprise fibers; (b) aligning the topsheet web andthe acquisition layer in a face to face relationship such that thesecond surface of the topsheet web is in contact with the first surfaceof the acquisition layer; (c) simultaneously mechanically deforming andcombining the topsheet web together with the acquisition layer whereinthe topsheet web and acquisition layer are nested together such that amajority of the three-dimensional protrusions formed in the topsheet webcoincide with and fit together with a majority of the three-dimensionalprotrusions formed in the acquisition layer to provide atopsheet/acquisition layer laminate web having three-dimensionalprotrusions, wherein a width of the acquisition layer is less than awidth of the topsheet web in a cross direction; the topsheet/acquisitionlayer laminate web having a first surface comprising the second surfaceof the acquisition layer; and (d) joining a portion of the backsheet webto a portion of the topsheet web of the topsheet/acquisition layerlaminate web such that the first surface of the topsheet/acquisitionlayer laminate web is facing towards the backsheet web.
 9. The processof claim 8 comprising the steps of: (a) providing a dry-laid fibrousstructure or a wet-laid fibrous structure; (b) depositing the dry-laidfibrous structure or the wet-laid fibrous structure on the first surfaceof the topsheet/acquisition layer laminate web or on the backsheet web;and (c) joining a portion of the backsheet to a portion of the topsheetweb of the topsheet/acquisition layer laminate web such that thedry-laid fibrous structure or the wet-laid fibrous structure ispositioned between the topsheet/acquisition layer laminate web and thebacksheet web.
 10. The process of claim 8 comprising the step of formingthe topsheet/acquisition layer laminate web by interrupting one of thetopsheet web or acquisition layer in the area of the three-dimensionalprotrusions of the topsheet/acquisition layer laminate web such that thethree-dimensional protrusions of the respective other non-interruptedtopsheet web or acquisition layer at least partially fit together withthe three-dimensional protrusions of the interrupted topsheet web oracquisition layer.